How can i changing text button by user input

How can i changing text button by user input - java

in my exercise in which there are a grid of 3x3 buttons some with numbers others without, I should put those without numbers a number from 0-9, however, put by the user then changing the text of the button. How can I do? I tried something but it doesn't work even when I search on the internet it didn't give me the result I wanted.
This is the code
public class MainActivity extends AppCompatActivity {
private Button btn;
private EditText edit;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn = (Button) findViewById(R.id.button_X00);
edit = (EditText) findViewById(R.id.edit_dialog);
btn.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
showDialog(edit.getText().toString());
return true;
}
});
}
private void showDialog(String str) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("input text");
View view = LayoutInflater.from(this).inflate(R.layout.activity_main, null);
final EditText edit_dialog = (EditText) view.findViewById(R.id.edit_dialog);
edit_dialog.setText(str);
builder.setView(view);
builder.setNegativeButton("cancel",null);
builder.setPositiveButton("confirm", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
btn.setText(edit_dialog.getText().toString());
}
});
builder.show();
}
}
THIS IS THE XML CODE
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="#+id/text_view_p8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="GRIGLIAMOD10"
android:textSize="30sp" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout"
android:layout_width="418dp"
android:layout_height="586dp"
android:layout_marginTop="49dp"
android:orientation="vertical"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/linearLayout2">
<androidx.gridlayout.widget.GridLayout
android:id="#+id/tabellaX"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:padding="60dp">
<EditText
android:id="#+id/edit_dialog"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<Button
android:id="#+id/button_X22"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="2"
app:layout_row="2" />
<Button
android:id="#+id/button_X00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="0"
app:layout_row="0"
android:focusable="false"/>
<Button
android:id="#+id/button_X01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text="" />
<Button
android:id="#+id/button_X12"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="2"
app:layout_row="1" />
<Button
android:id="#+id/button_X02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="2"
app:layout_row="0" />
<Button
android:id="#+id/button_X20"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="0"
app:layout_row="2" />
<Button
android:id="#+id/button_X21"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text="" />
<Button
android:id="#+id/button_X10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="0"
app:layout_row="1" />
<Button
android:id="#+id/button_X11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="1"
app:layout_row="1" />
</androidx.gridlayout.widget.GridLayout>
</LinearLayout>

So here is one possible solution.
First in your XML you can avoid using both Linear layouts since you are using a Constraint layout. So the XML looks as follow.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id="#+id/text_view_p8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="GRIGLIAMOD10"
android:textSize="30sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.gridlayout.widget.GridLayout
android:id="#+id/tabellaX"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:padding="60dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/text_view_p8">
<Button
android:id="#+id/button_X00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="0"
app:layout_row="0" />
<Button
android:id="#+id/button_X01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
/>
<Button
android:id="#+id/button_X12"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="2"
app:layout_row="1" />
<Button
android:id="#+id/button_X02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="2"
app:layout_row="0" />
<Button
android:id="#+id/button_X20"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="0"
app:layout_row="2" />
<Button
android:id="#+id/button_X21"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
/>
<Button
android:id="#+id/button_X22"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="2"
app:layout_row="2" />
<Button
android:id="#+id/button_X10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="0"
app:layout_row="1" />
<Button
android:id="#+id/button_X11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
android:text=""
app:layout_column="1"
app:layout_row="1" />
</androidx.gridlayout.widget.GridLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
I also changed the Java file and I left some comments in case you want a different behavior from your app.
import android.content.DialogInterface;
import android.os.Bundle;
import android.text.InputType;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import java.util.ArrayList;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.gridlayout.widget.GridLayout;
public class MainActivity extends AppCompatActivity implements View.OnLongClickListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// get all the buttons from the grid - be careful if you add another type of Touchable
ArrayList<View> gridButtons = ((GridLayout) findViewById(R.id.tabellaX)).getTouchables();
for (View v : gridButtons) {
((Button) v).setOnLongClickListener(this);
}
}
#Override
public boolean onLongClick(View v) {
// show the dialog ONLY if the button isn't set
if (((Button) v).getText().toString().isEmpty())
showDialog(v);
return true;
}
private void showDialog(final View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Input a number");
final EditText input = new EditText(this);
input.setInputType(InputType.TYPE_CLASS_NUMBER);
builder.setView(input);
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// get only the first inserted number(i.e. input: 45; take only the 4)
((Button) v).setText(input.getText().toString().substring(0, 1));
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.show();
}
}
EDIT
In the comment section below the answer you asked me if I can edit the behavior of the App.
If you click on the first button where there is the number, for example "4", this must be added to all the other buttons that have a number, if the second button has a number 3, this becomes 7. But if for example 5 to 6 is added this must not become 11 but 1 must be of module 10.
package hr.hello.dm.test;
import android.content.DialogInterface;
import android.os.Bundle;
import android.text.InputType;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import java.util.ArrayList;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.gridlayout.widget.GridLayout;
public class MainActivity extends AppCompatActivity implements View.OnLongClickListener, View.OnClickListener {
private ArrayList<View> gridButtons;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// get all the buttons from the grid - be careful if you add another type of Touchable
gridButtons = ((GridLayout) findViewById(R.id.tabellaX)).getTouchables();
for (View v : gridButtons) {
((Button) v).setOnLongClickListener(this);
((Button) v).setOnClickListener(this);
}
}
#Override
public void onClick(View v) {
if(((Button) v).((Button) v).getText().toString().isEmpty())
return;
int value = Integer.parseInt(((Button) v).getText().toString());
for (View btn : gridButtons) {
if(v.getId() != btn.getId() && !((Button) btn).getText().toString().isEmpty()) {
int btnValue = Integer.parseInt(((Button) btn).getText().toString());
((Button) btn).setText(String.valueOf((value + btnValue)%10));
}
}
}
#Override
public boolean onLongClick(View v) {
if (((Button) v).getText().toString().isEmpty())
showDialog(v);
return true;
}
private void showDialog(final View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Input a number");
final EditText input = new EditText(this);
input.setInputType(InputType.TYPE_CLASS_NUMBER);
builder.setView(input);
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
int value = Integer.parseInt(input.getText().toString());
((Button) v).setText(String.valueOf(value));
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.show();
}
}

As far as i understand what you are trying to do, codes below may help you.
public class MainActivity extends AppCompatActivity{
Button[] buttons;
private final String TAG = this.getClass().getSimpleName();
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
buttons = new Button[9];
buttons[0] = (Button) findViewById(R.id.button_X00);
buttons[1] = (Button) findViewById(R.id.button_X10);
buttons[2] = (Button) findViewById(R.id.button_X20);
buttons[3] = (Button) findViewById(R.id.button_X01);
buttons[4] = (Button) findViewById(R.id.button_X11);
buttons[5] = (Button) findViewById(R.id.button_X21);
buttons[6] = (Button) findViewById(R.id.button_X02);
buttons[7] = (Button) findViewById(R.id.button_X12);
buttons[8] = (Button) findViewById(R.id.button_X22);
for (int a = 0; a<buttons.length;a++){
showDialog(buttons[a]);
}
}
private void showDialog(final Button btn) {
btn.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("input text");
View view = View.inflate(MainActivity.this,R.layout.dialog_activity, null);
builder.setView(view);
final EditText edit_dialog = view.findViewById(R.id.edit_dialog);
builder.setNegativeButton("cancel",null);
builder.setPositiveButton("confirm", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
try {
btn.setText(edit_dialog.getText().toString());
}catch (Exception e){
Log.e(TAG, e.getMessage() + " " );
}
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
return true;
}
});
}
}
activity_main:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<androidx.gridlayout.widget.GridLayout
android:id="#+id/tabellaX"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:padding="60dp">
<Button
android:id="#+id/button_X22"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
app:layout_column="2"
app:layout_row="2" />
<Button
android:id="#+id/button_X00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
app:layout_column="0"
app:layout_row="0"
android:focusable="false"/>
<Button
android:id="#+id/button_X01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true" />
<Button
android:id="#+id/button_X12"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
app:layout_column="2"
app:layout_row="1" />
<Button
android:id="#+id/button_X02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
app:layout_column="2"
app:layout_row="0" />
<Button
android:id="#+id/button_X20"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
app:layout_column="0"
app:layout_row="2" />
<Button
android:id="#+id/button_X21"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
app:layout_column="1"
app:layout_row="2"/>
<Button
android:id="#+id/button_X10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
app:layout_column="0"
app:layout_row="1" />
<Button
android:id="#+id/button_X11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:freezesText="true"
app:layout_column="1"
app:layout_row="1" />
</androidx.gridlayout.widget.GridLayout>
</LinearLayout>
and here is dialog_activity.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/text_view_p8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="GRIGLIAMOD10"
android:textSize="30sp" />
<EditText
android:id="#+id/edit_dialog"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"/>
</LinearLayout>

Related

Get value of a EditText in another layout

I have an dialog that appears where the user can costumize how many points they get from each action. The dialog is based on a layout that is not the main_activity. the main activity is the layout that is used in setContentView in the onCreate method.
when I try to get the values I am only getting null, (because the layout where the EditText is is not set as the contentview.... maybe?)
How do I solve this problem so that I get the value of the edittext in the "settings" layout and can use that value in the MainActivity?
private int teamOnePoints=0;
private int teamTwoPoints=0;
private boolean teamOneField=true;
private int burnedPoints = 1;
private int lyrePoints= 3;
private int oneHandLyrePoints = 5;
private int homeRunPoints=5;
private int revPoints=1;
private String teamOneName = "Lag 1";
private String teamTwoName = "Lag 2";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ToggleButton toggle = (ToggleButton)
findViewById(R.id.field_team_toggle); //activates toggle button
toggle.setOnCheckedChangeListener(new
CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean
isChecked) {
if (isChecked) {
//changes between the teams
teamOneField=false;
} else {
teamOneField=true;
}
}
});
FloatingActionButton fab = findViewById(R.id.points_edit_button);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
openDialog();
}
});
}
public void openDialog() {
AlertDialog.Builder builder = new
AlertDialog.Builder(MainActivity.this);
LayoutInflater inflater = this.getLayoutInflater();
View v = inflater.inflate(R.layout.settings, null);
builder.setView(v);
builder.setTitle(getResources().getString(R.string.edit_rules));
builder.setPositiveButton(getResources().getString(R.string.ok_button),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
applySettings();
}
});
builder.setNegativeButton(getResources().getString(R.string.cancel_button),
null);
builder.show();
}
private void applySettings(){
EditText newBurnedPoints = findViewById(R.id.burned_edit);
burnedPoints=Integer.parseInt(newBurnedPoints.getText().toString());
EditText newLyrePoints = findViewById(R.id.lyre_edit);
lyrePoints=Integer.parseInt(newLyrePoints.getText().toString());
EditText newOneHandLyrePoints = findViewById(R.id.one_hand_lyre_edit);
oneHandLyrePoints=Integer.parseInt
(newOneHandLyrePoints.getText().toString());
EditText newHomeRunPoints = findViewById(R.id.home_run_edit);
homeRunPoints=Integer.parseInt(newHomeRunPoints.getText().toString());
EditText newRevPoints = findViewById(R.id.rev_edit);
revPoints=Integer.parseInt(newRevPoints.getText().toString());
EditText newTeamOneName = findViewById(R.id.name_one_edit);
teamOneName= newTeamOneName.getText().toString();
TextView setNewTeamOneName = (TextView)findViewById(R.id.name_one);
setNewTeamOneName.setText(teamOneName);
EditText newTeamTwoName =findViewById(R.id.name_two_edit);
teamTwoName= newTeamTwoName.getText().toString();
TextView setNewTeamTwoName = (TextView)findViewById(R.id.name_two);
setNewTeamTwoName.setText(teamTwoName);
}
SETTINGS LAYOUT:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="24dp"
android:id="#+id/settings_layout"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TextView
android:id="#+id/name_one_settings"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/name_team_one"
style="#style/settings_headings"
/>
<TextView
android:id="#+id/name_two_settings"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/name_team_two"
style="#style/settings_headings"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<EditText
android:id="#+id/name_one_edit"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="#string/team_one"
android:maxLength="20"
android:singleLine="true"
/>
<EditText
android:id="#+id/name_two_edit"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="#string/team_two"
android:maxLength="20"
android:singleLine="true"
/>
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/burned_points"
android:paddingTop="16dp"
style="#style/settings_headings"/>
<EditText
android:id="#+id/burned_edit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="1"
android:maxLength="2"
android:inputType="number"
android:singleLine="true"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/lyre_points"
android:paddingTop="16dp"
style="#style/settings_headings"/>
<EditText
android:id="#+id/lyre_edit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="3"
android:maxLength="2"
android:inputType="number"
android:singleLine="true"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/one_hand_lyre_points"
android:paddingTop="16dp"
style="#style/settings_headings"/>
<EditText
android:id="#+id/one_hand_lyre_edit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="5"
android:maxLength="2"
android:inputType="number"
android:singleLine="true"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/home_run_points"
android:paddingTop="16dp"
style="#style/settings_headings"/>
<EditText
android:id="#+id/home_run_edit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="5"
android:maxLength="2"
android:inputType="number"
android:singleLine="true"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/rev_points"
android:paddingTop="16dp"
style="#style/settings_headings"/>
<EditText
android:id="#+id/rev_edit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="1"
android:maxLength="2"
android:inputType="number"
android:singleLine="true"/>
</LinearLayout>
MAIN LAYOUT
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity"
>
<LinearLayout
android:id="#+id/team_names"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TextView
android:id="#+id/name_one"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/team_one"
style="#style/Headings"
/>
<TextView
android:id="#+id/name_two"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/team_two"
style="#style/Headings"
/>
</LinearLayout>
<LinearLayout
android:id="#+id/team_points"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="#+id/points_one"
android:layout_width="0dp"
android:layout_height="88dp"
android:layout_weight="1"
android:autoSizeTextType="uniform"
android:text="0"
style="#style/TeamPoints"
/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="16dp"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/field_team"/>
<ToggleButton
android:id="#+id/field_team_toggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textOff="#string/team_one"
android:textOn="#string/team_two"
style="#style/buttons"/>
</LinearLayout>
<TextView
android:id="#+id/points_two"
android:layout_width="0dp"
android:layout_height="88dp"
android:layout_weight="1"
android:autoSizeTextType="uniform"
android:text="0"
style="#style/TeamPoints"
/>
</LinearLayout>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="#string/events"
android:paddingTop="16dp"
style="#style/Headings"/>
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="16dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
>
<Button
android:id="#+id/burned_button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="burned"
android:text="#string/burned"
style="#style/buttons"/>
<Button
android:id="#+id/lyre_button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="lyre"
android:text="#string/lyre"
style="#style/buttons"
/>
<Button
android:id="#+id/one_hand_lyre_button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="oneHandLyre"
android:text="#string/oneHandLyre"
style="#style/buttons"
/>
<Button
android:id="#+id/homeRun_button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="homeRun"
android:text="#string/homeRun"
style="#style/buttons"
/>
<Button
android:id="#+id/rev_button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="rev"
android:text="#string/rev"
style="#style/buttons"
/>
</TableLayout>
<Button
android:id="#+id/reset_button"
android:layout_width="168dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|bottom"
android:layout_marginTop="16dp"
android:onClick="reset"
android:text="#string/reset"
style="#style/buttons"
/>
<android.support.design.widget.FloatingActionButton
android:id="#+id/points_edit_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end|bottom"
android:src="#android:drawable/ic_menu_edit"
android:layout_margin="16dp" />
</LinearLayout>

I would strongly recommend using SharedPreferences. This way, you can access the data even if you restart your application. If that does not work for you, you can use Intent.
Consider reading this StackOverflow post.
Using SharedPreferences:
SharedPreferences sharedPref = getActivity().getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putInt(getString(R.string.points), pointsPerActivity);
editor.commit();
SharedPreferences sharedPref = getActivity().getPreferences(Context.MODE_PRIVATE);
int defaultValue = 1;
// or you can store the value somewhere
// getResources().getInteger(R.integer.defaultPointsPerActivity);
int pointsPerActivity = sharedPref.getInt(pointsPerActivity, defaultValue);

pass view object in applySettings(v);
private int teamOnePoints=0;
private int teamTwoPoints=0;
private boolean teamOneField=true;
private int burnedPoints = 1;
private int lyrePoints= 3;
private int oneHandLyrePoints = 5;
private int homeRunPoints=5;
private int revPoints=1;
private String teamOneName = "Lag 1";
private String teamTwoName = "Lag 2";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ToggleButton toggle = (ToggleButton)
findViewById(R.id.field_team_toggle); //activates toggle button
toggle.setOnCheckedChangeListener(new
CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean
isChecked) {
if (isChecked) {
//changes between the teams
teamOneField=false;
} else {
teamOneField=true;
}
}
});
FloatingActionButton fab = findViewById(R.id.points_edit_button);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
openDialog();
}
});
}
public void openDialog() {
AlertDialog.Builder builder = new
AlertDialog.Builder(MainActivity.this);
LayoutInflater inflater = this.getLayoutInflater();
View v = inflater.inflate(R.layout.settings, null);
builder.setView(v);
builder.setTitle(getResources().getString(R.string.edit_rules));
builder.setPositiveButton(getResources().getString(R.string.ok_button),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
applySettings(v);
}
});
builder.setNegativeButton(getResources().getString(R.string.cancel_button),
null);
builder.show();
}
private void applySettings(View view){
EditText newBurnedPoints = view.findViewById(R.id.burned_edit);
burnedPoints=Integer.parseInt(newBurnedPoints.getText().toString());
EditText newLyrePoints = view.findViewById(R.id.lyre_edit);
lyrePoints=Integer.parseInt(newLyrePoints.getText().toString());
EditText newOneHandLyrePoints = view.findViewById(R.id.one_hand_lyre_edit);
oneHandLyrePoints=Integer.parseInt
(newOneHandLyrePoints.getText().toString());
EditText newHomeRunPoints = view.findViewById(R.id.home_run_edit);
homeRunPoints=Integer.parseInt(newHomeRunPoints.getText().toString());
EditText newRevPoints = view.findViewById(R.id.rev_edit);
revPoints=Integer.parseInt(newRevPoints.getText().toString());
EditText newTeamOneName = view.findViewById(R.id.name_one_edit);
teamOneName= newTeamOneName.getText().toString();
TextView setNewTeamOneName = (TextView)findViewById(R.id.name_one);
setNewTeamOneName.setText(teamOneName);
EditText newTeamTwoName =view.findViewById(R.id.name_two_edit);
teamTwoName= newTeamTwoName.getText().toString();
TextView setNewTeamTwoName = (TextView)findViewById(R.id.name_two);
setNewTeamTwoName.setText(teamTwoName);
}

Animation Problems in Android

I've got few problems in using animation in android studios:
I'm trying to translate certain images at an angle. Like in the image below I want to move that attachment pin like icons to all the ends of the corner. How can I do this?
I was trying to scale up the image of the gear image in the center every time its tapped and scale down when tapped again. However, the image starts losing its quality. How can I prevent the quality from getting deteriorated?
Here's the code:
MainActivity.java
package com.rootonelabs.vicky.pulse;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.LinearInterpolator;
import android.widget.Button;
import android.widget.ImageView;
import com.gigamole.library.PulseView;
public class MainActivity extends AppCompatActivity {
PulseView pulseView;
Button btnStart, btnStop;
ImageView gear;
ImageView icon1,icon2,icon3,icon4,icon5,icon6;
int chkClick = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pulseView = (PulseView)findViewById(R.id.pv);
btnStart = (Button)findViewById(R.id.btnStart);
btnStop = (Button)findViewById(R.id.btnStop);
btnStart.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
pulseView.startPulse();
}
});
btnStop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
pulseView.finishPulse();
}
});
gear = (ImageView)findViewById(R.id.gear);
gear.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
gear.animate().scaleX(1.5f).scaleY(1.5f).setDuration(500);
animateDiagonalPan();
icon1 = findViewById(R.id.icon1);
icon1.animate().translationXBy(120).translationYBy(120).setDuration(500);
if(chkClick==0)
{
pulseView.animate().alpha(0).setDuration(500);
gear.animate().scaleX(1.5f).scaleY(1.5f).setDuration(500);
pulseView.finishPulse();
chkClick = 1;
}else{
pulseView.animate().alpha(1f).setDuration(500);
gear.animate().scaleX(1f).scaleY(1f).setDuration(500);
pulseView.startPulse();
chkClick = 0;
}
}
});
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f39c12"
tools:context="com.rootonelabs.vicky.pulse.MainActivity">
<LinearLayout
android:orientation="horizontal"
android:layout_alignParentBottom="true"
android:weightSum="2"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="#+id/btnStart"
android:layout_weight="1"
android:text="START"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<Button
android:id="#+id/btnStop"
android:layout_weight="1"
android:text="STOP"
android:layout_width="0dp"
android:layout_height="wrap_content" />
</LinearLayout>
<ImageView
android:id="#+id/gear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/men3"/>
<ImageView
android:id="#+id/icon1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/ic_action_video"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/ic_action_archive"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/ic_attachment_black_24dp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/ic_action_video"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/ic_action_archive"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/ic_attachment_black_24dp"/>
<com.gigamole.library.PulseView
android:id="#+id/pv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
app:pv_alpha="70"
app:pv_color="#FFF"
app:pv_icon="#drawable/men2"
app:pv_icon_width="100dp"
app:pv_icon_height="100dp"
app:pv_interpolator="#android:anim/linear_interpolator"
app:pv_measure="height"
app:pv_spawn_period="1000" />
</RelativeLayout>

Dynamically Remove EditText Field in LinearLayout

My problem is that once my editText fields are created, I don't know how to remove them one by one with the other button in my app. I don't really understand the android:id element as it relates to setID() in my java code. I guess my main question is, how do I figure out how to target dynamically created editText views with their id's if I don't know their id's. Here is my code, any help is really appreciated:
Java:
package com.zdowning.decisionmaker;
import android.graphics.Typeface;
import android.support.v7.app.AppCompatActivity;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.ScrollView;
import android.widget.Toast;
import java.lang.*;
import static com.zdowning.decisionmaker.R.layout.activity_main;
public class MainActivity extends AppCompatActivity {
public int numberOfLines = 3;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(activity_main);
final Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
getAnswer();
}
});
final Button add_button = (Button) findViewById(R.id.add_button);
add_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Add_Line();
}
});
final Button remove_button = (Button) findViewById(R.id.remove_button);
remove_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Remove_Line();
}
});
}
public void Add_Line() {
LinearLayout ll = (LinearLayout)findViewById(R.id.linearLayoutDecisions);
// add edittext
EditText et = new EditText(this);
LinearLayout.LayoutParams p = new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
et.setLayoutParams(p);
et.setId(numberOfLines++);
et.setText("Enter Answer #" + numberOfLines++);
ll.addView(et);
numberOfLines++;
Toast.makeText(MainActivity.this, "1", Toast.LENGTH_LONG).show();
}
public void Remove_Line() {
}
public void getAnswer() {
String[] options = new String[numberOfLines];
EditText text = (EditText)findViewById(R.id.editText2);
options[0] = text.getText().toString();
text = (EditText)findViewById(R.id.editText3);
options[1] = text.getText().toString();
text = (EditText)findViewById(R.id.editText4);
options[2] = text.getText().toString();
int number = (int)(Math.random() * 3);
String answer = options[number];
TextView answerBox = (TextView)findViewById(R.id.textView7);
answerBox.setText(answer);
}
}
XML:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#d4cfcd">
tools:context="com.zdowning.decisionmaker.MainActivity">
<LinearLayout
android:id="#+id/linearLayoutMain"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:orientation="vertical" >
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="45dp"
android:gravity="center"
android:hint="Enter Your Question Here"
android:layout_marginBottom="20dp"
android:layout_marginTop="20dp"/>
<LinearLayout
android:id="#+id/linearLayoutDecisions"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<EditText
android:id="#+id/editText3"
android:layout_width="match_parent"
android:layout_height="45dp"
android:gravity="center"
android:hint="Enter Answer #2" />
<EditText
android:id="#+id/editText2"
android:layout_width="match_parent"
android:layout_height="45dp"
android:gravity="center"
android:hint="Enter Answer #1" />
<EditText
android:id="#+id/editText4"
android:layout_width="match_parent"
android:layout_height="45dp"
android:gravity="center"
android:hint="Enter Answer #3" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center">
<Button
android:id="#+id/add_button"
style="?android:attr/borderlessButtonStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:text="+"
android:textColor="#android:color/background_light"
android:textSize="18sp"/>
<View
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight="1" />
<Button
android:id="#+id/remove_button"
style="?android:attr/borderlessButtonStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:text="-"
android:textColor="#android:color/background_light"
android:textSize="18sp"
android:layout_margin="10dp"/>
</LinearLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button
android:id="#+id/button"
style="?android:attr/borderlessButtonStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:text="DECIDE!"
android:textColor="#android:color/background_light"
android:textSize="18sp"
android:layout_centerInParent="true" />
</RelativeLayout>
<TextView
android:id="#+id/textView7"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_margin="20dp"
android:textColor="#android:color/black"
android:textSize="36sp" />
</LinearLayout>
</android.support.constraint.ConstraintLayout>

There is no relationship between android:id and your setID.
Check this answer to unsderstand more about that.
Anyway, one approach to achieve to remove a generated line could be based on the children index of your LinearLayout like this:
private LinearLayout mEditTextContainer;
#Override
protected void onCreate(Bundle savedInstanceState) {
...
mEditTextContainer = (LinearLayout)findViewById(R.id.linearLayoutDecisions);
...
}
public void addLine() {
// add edittext
EditText et = new EditText(this);
LinearLayout.LayoutParams p = new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
et.setLayoutParams(p);
et.setText("Enter Answer #" + (mEditTextContainer.getChildCount()+1));
mEditTextContainer.addView(et);
Toast.makeText(MainActivity.this, "1", Toast.LENGTH_LONG).show();
}
public void removeLine() {
mEditTextContainer.removeViewAt(mEditTextContainer.getChildCount()-1);
}

How to do enable a button and change its colour when textfield has some value?

I have tried many answers already given to this, but nothing seems to work properly. And the answers are only for changing state of the button, not colour and text. What am I missing?
I am a very VERY new learner to both Android and programming. And this is my first question on Stack Overflow. Hope it's as per guidelines.
I have a login page which looks like below (img1) [disabled][1]. If textfield has any value, the button should get enabled (img2) [enabled][2]. The Java and XML files are given below.
package io.kaapi.kaapimobileassistant.Activities;
import android.content.Intent;
import android.net.Uri;
import android.support.design.widget.TextInputLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.SpannableString;
import android.text.style.UnderlineSpan;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.TextView;
import io.kaapi.kaapimobileassistant.Misc.StorageManager;
import io.kaapi.kaapimobileassistant.R;
public class LoginActivity extends AppCompatActivity {
private final static String TAG = "LoginActivity";
private Button login_button;
private TextInputLayout login_activation_layout;
private EditText login_activation_code;
private LinearLayout login_signup;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
login_button = (Button) findViewById(R.id.login_button);
login_activation_layout = (TextInputLayout) findViewById(R.id.login_acitivation_layout);
login_activation_code = (EditText) findViewById(R.id.login_activation_code);
login_signup = (LinearLayout) findViewById(R.id.login_signup);
login_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.v(TAG, "Login pressed");
String activation_code_layout = login_activation_layout.getEditText().getText().toString();
Log.v(TAG, "Layout "+activation_code_layout);
String activation_code = login_activation_code.getText().toString();
Log.v(TAG, "Code "+activation_code);
if(activation_code.equalsIgnoreCase("")){
Log.v(TAG, "It's blank");
login_activation_layout.setError("Please enter an activation code");
} else {
Log.v(TAG, "Call login API, validate and show errors or login");
//StorageManager.write(LoginActivity.this, null, "client_domain", "http://ankit50.kaapi.io");
//StorageManager.write(LoginActivity.this, null, "client_logo", "http://cdn.kaapi.io/static");
startActivity(new Intent(LoginActivity.this, HomeActivity.class));
}
}
});
login_activation_code.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
enableSubmitIfReady();
}
#Override
public void afterTextChanged(Editable s) {
}
public void enableSubmitIfReady() {
Button login_button = (Button) findViewById(R.id.login_button);
if(login_activation_code.toString().trim().length()==0){
login_button.setEnabled(false);
} else {
login_button.setEnabled(true);
}
}
});
login_signup.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Uri uri = Uri.parse("https://business.kaapi.io");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
}
});
}
}
The XML file is below
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#android:color/white"
android:gravity="center_vertical|center_horizontal"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="io.kaapi.kaapimobileassistant.Activities.LoginActivity">
<ImageView
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_marginLeft="71dp"
android:layout_marginRight="71dp"
android:layout_marginTop="66dp"
android:src="#drawable/kaapi_logo_login"
android:scaleType="fitCenter"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="65dp"
android:layout_marginLeft="28dp"
android:layout_marginRight="28dp"
android:textStyle="bold"
android:gravity="center"
android:textColor="#color/colorTitle"
android:text="Activate Mobile Assistant"
android:textSize="24sp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center|top"
android:layout_marginLeft="24dp"
android:layout_marginRight="24dp"
android:layout_marginTop="36dp"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/colorText"
android:src="#drawable/ic_info_outline_black_24dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/colorText"
android:textSize="14sp"
android:textStyle="italic"
android:layout_marginLeft="5dp"
android:text="The code was sent to you in sign up email and your web dashboard." />
</LinearLayout>
<android.support.design.widget.TextInputLayout
android:id="#+id/login_acitivation_layout"
android:layout_width="match_parent"
android:layout_marginTop="29dp"
android:layout_height="wrap_content">
<EditText
android:id="#+id/login_activation_code"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text"
android:layout_marginLeft="24dp"
android:layout_marginRight="24dp"
android:maxLength="20"
android:hint="Activation code"
android:maxLines="1"
android:textSize="14sp" />
</android.support.design.widget.TextInputLayout>
<Button
android:id="#+id/login_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
style="#style/Widget.AppCompat.Button"
android:text="Activate"/>
<LinearLayout
android:layout_marginTop="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center|top"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="12sp"
android:text="New to Kaapi? " />
<LinearLayout
android:id="#+id/login_signup"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center|top"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center|top"
android:text="Sign up first"
android:textColor="#color/colorPrimary"
android:textSize="12sp" />
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/colorPrimary" />
</LinearLayout>
</LinearLayout>
</LinearLayout>

try this
public void enableSubmitIfReady() {
Button login_button = (Button) findViewById(R.id.login_button);
if(login_activation_code.toString().trim().length()==0){
login_button.setClickable(false);
login_button.setBackgroundColor(getResources().getColor(R.color.holo_light_green));// change color here so it's look like button disable
} else {
login_button.setClickable(true);
login_button.setBackgroundColor(getResources().getColor(R.color.holo_dark_green));
}
}

How to make Views with an Invisible attribute 'Visible' after clicking a button

I have several Views, text views, and a button that have the android:visibility="invisible" attribute. My goal is to click a button that resides above these 'invisible' widgets, so that these widgets will become visible. I created another java class called 'VisibilityActivity.java" and tried the following method. But for some reason when I run the app, the button doesn't do anything. I don't know what I'm missing.
Here's the code:
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class VisibilityActivity extends Activity {
private View mVictim;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.new_property3);
mVictim = findViewById(R.id.horizontalRule1);
mVictim = findViewById(R.id.TextView03);
mVictim = findViewById(R.id.horizontalRule2);
Button submitRating = (Button) findViewById(R.id.submitRatingButton);
submitRating.setOnClickListener(mVisibleListener);
}
OnClickListener mVisibleListener = new OnClickListener() {
public void onClick(View v) {
mVictim.setVisibility(View.INVISIBLE);
}
};
}
Here is the xml:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#drawable/custom_background"
android:isScrollContainer="true"
android:orientation="vertical"
android:paddingTop="10dp" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_gravity="center"
android:text="#string/ratingsInfo"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/black1" />
<View
android:layout_width="fill_parent"
android:layout_height="2dp"
android:background="#color/black1"
android:layout_marginLeft="2dp"
android:layout_marginRight="2dp"
android:layout_marginBottom="5dp" />
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:text="#string/yourRating"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/black1" />
<RatingBar
android:id="#+id/ratingBar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="10dp" />
<Button
android:id="#+id/submitRatingButton"
android:layout_width="275dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="10dp"
android:background="#drawable/custom_button"
android:text="#string/submitRating"
android:textColor="#color/black1" />
<View
android:id="#+id/horizontalRule1"
android:layout_width="fill_parent"
android:layout_height="2dp"
android:background="#color/black1"
android:layout_marginLeft="2dp"
android:layout_marginRight="2dp"
android:layout_marginBottom="5dp"
android:visibility="invisible" />
<TextView
android:id="#+id/TextView03"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_gravity="center"
android:text="#string/summaryInfo"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/black1"
android:visibility="invisible" />
<View
android:id="#+id/horizontalRule2"
android:layout_width="fill_parent"
android:layout_height="2dp"
android:background="#color/black1"
android:layout_marginLeft="2dp"
android:layout_marginRight="2dp"
android:layout_marginBottom="5dp"
android:visibility="invisible" />
<TextView
android:id="#+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:text="#string/ourRating"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/black1"
android:visibility="invisible" />
<RatingBar
android:id="#+id/ratingBar2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:stepSize=".01"
android:layout_marginBottom="10dp"
android:visibility="invisible" />
<TextView
android:id="#+id/TextView02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:text="#string/overallRating"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/black1"
android:visibility="invisible" />
<RatingBar
android:id="#+id/ratingBar3"
android:color="#color/black1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:stepSize=".01"
android:layout_marginBottom="40dp"
android:visibility="invisible" />
<Button
android:id="#+id/saveContinueButton3"
android:layout_width="275dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="15dp"
android:background="#drawable/custom_button"
android:text="#string/saveContinue"
android:textColor="#color/black1"
android:onClick="onSaveAndContinue3Clicked"
android:visibility="invisible" />
</LinearLayout>
</ScrollView>
Thanks. Help would be greatly appreciated!

I am updating user936414's answer.
OnClickListener mVisibleListener = new OnClickListener() {
public void onClick(View v) {
if( mText.getVisibility() == View.INVISIBLE )
mText.setVisibility(View.VISIBLE);
else
mText.setVisibility(View.INVISIBLE);
if( mRule1.getVisibility() == View.INVISIBLE )
mRule1.setVisibility(View.VISIBLE);
else
mRule1.setVisibility(View.INVISIBLE);
if( mRule2.getVisibility() == View.INVISIBLE )
mRule2.setVisibility(View.VISIBLE);
else
mRule2.setVisibility(View.INVISIBLE);
}
};
Also you might want to experiment with View.GONE.

findViewById(R.id.ratingBar3).setVisibility(View.VISIBLE);
findViewById(R.id.saveContinueButton3).setVisibility(View.VISIBLE);
you made it invisible view invisible again.. try the above code

Try
public class VisibilityActivity extends Activity {
private TextView mText;
private View mRule1, mRule2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.new_property3);
mText= (TextView)findViewById(R.id.horizontalRule1);
mRule1 = findViewById(R.id.TextView03);
mRule2 = findViewById(R.id.horizontalRule2);
Button submitRating = (Button) findViewById(R.id.submitRatingButton);
submitRating.setOnClickListener(mVisibleListener);
}
OnClickListener mVisibleListener = new OnClickListener() {
public void onClick(View v) {
mText.setVisibility(View.VISIBLE);
mRule1.setVisibility(View.VISIBLE);
mRule2.setVisibility(View.VISIBLE);
}
};
}

Button submitRating = (Button) findViewById(R.id.submitRatingButton);
submitRating.setOnClickListener(new View.onClickListener)
{
#Override
public void onClick(View v)
{
//Insert your code here
}
}

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