I want use ActionMode to change my ActionBar. But I have a problem with startActionMode. It shows me an error:
Error:(28, 65) error: incompatible types:
MainActivity.ActionBarCallBack cannot be converted to Callback
I don't know how I should use this as samples.
package ferdos.androidui.activity;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.view.ActionMode;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
private ActionMode mActionMode;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar)findViewById(R.id.my_toolbar);
//setSupportActionBar(toolbar);
toolbar.inflateMenu(R.menu.menu2);
Button btn = (Button)findViewById(R.id.button4);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mActionMode = MainActivity.this.startActionMode(new ActionBarCallBack());
}
});
}
class ActionBarCallBack implements ActionMode.Callback {
#Override...
}
}
To fix this issue, you have to replace the method startActionMode to startSupportActionMode
Related
I have the code for the sound and the next activity. I do not know how to merge the two codes in order to execute them at the same time or in sequence.
package com.example.testmessages;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
public class MainActivity extends AppCompatActivity {
ImageButton imageButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Add sound
final MediaPlayer gunSoundMP = MediaPlayer.create(this, R.raw.gunsound);
ImageButton GunSound=(ImageButton)this.findViewById(R.id.imageButton3);
GunSound.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
gunSoundMP.start();
}
});
//Image button to execute new Activity
imageButton=(ImageButton) findViewById(R.id.imageButton3);
imageButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intentLoadMain2Activity = new Intent(MainActivity.this, Main2Activity.class);
startActivity(intentLoadMain2Activity);
gunSoundMP.start();
}
});
}
}
as posts are limited in size on this platform I will post in parts first my mainactivity.java file package com.cancunsteve.aboutcancunsteve;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.MainActivity;
import android.NewActivity2;
public class MainActivity extends AppCompatActivity {
Button button;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.MyButton);
button.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
Intent myIntent = new Intent(MainActivity.this,
NewActivity2.class);
startActivity(myIntent);
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
You have to create a NewActivity2 class/activity
Your import is wrong for the NewActivity2, I doubt it is part of the android package.
I have 2 screen on first i have Text field and when i pressed the button it takes me to second screen with data from the Text Field but while pressing the back button from screen 2 to screen 1.
I want that the text field(screen 1) will show the previously added data through variables.
////////////////////////////////////Screen 1 code://///////////////////////////
package com.example.abids.savingdataonbackbutton;
import android.content.Intent;
import android.os.PersistableBundle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
Button button;
EditText name;
#Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button=(Button)findViewById(R.id.buttonNext1);
name=(EditText)findViewById(R.id.editTextName);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String namevalue= name.getText().toString();
savedInstanceState.putString("MyString", "Welcome back to Android");
Intent intent=new Intent(MainActivity.this,Main3Activity.class);
intent.putExtra("Name",namevalue);
startActivity(intent);
}
});
}
}
////////////////**Screen 2 code:**////////////////////////////////////////////
package com.example.abids.savingdataonbackbutton;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import org.w3c.dom.Text;
public class Main3Activity extends AppCompatActivity {
TextView t1;
Button b1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
b1=(Button) findViewById(R.id.button);
t1=(TextView)findViewById(R.id.textView2);
t1=(TextView)findViewById(R.id.textView2);
getIntent().getStringExtra("Name");
t1.setText("Name :" +getIntent().getStringExtra("Name"));
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent= new Intent(Main3Activity.this,MainActivity.class);
startActivity(intent);
}
});
}
}
Screen 2
package com.example.abids.savingdataonbackbutton;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import org.w3c.dom.Text;
public class Main3Activity extends AppCompatActivity {
TextView t1;
Button b1;
String valueOfName;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
b1=(Button) findViewById(R.id.button);
t1=(TextView)findViewById(R.id.textView2);
t1=(TextView)findViewById(R.id.textView2);
getIntent().getStringExtra("Name");
valueOfName = getIntent().getStringExtra("Name");
t1.setText("Name :" +getIntent().getStringExtra("Name"));
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
screen2Done();
}
});
}
public void screen2Done() {
Intent intent=new Intent();
intent.putExtra("RESULT_STRING", valueOfName);
setResult(RESULT_OK, intent);
finish();
}
#Override
public void onBackPressed() {
screen2Done();
}
On screen 1, capture the value in onActivityResult() method, similarly as in screen 2.
I am fairly new to Android/Java developing and I have run into this error. I cannot figure out what is wrong after doing extensive research and playing with my methods. Here is my code:
package org.flinthill.finalprojectv2;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.view.View.OnClickListener;
import android.widget.Toast;
import android.text.method.DigitsKeyListener;
import android.text.InputFilter;
public class mainactivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
final Button SuSe = (Button) findViewById(R.id.SuSe);
SuSe.setOnClickListener()
{
new View.OnClickListener() {
#Override
public void onClick(View view){
}
};
}
}
If anyone knows what I could've done wrong, please let me know! Thanks!
Put the code inSide onCreate()
public class mainactivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button SuSe = (Button) findViewById(R.id.SuSe);
SuSe.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//Button Clicked
}
});
}
}
put your code inside onCreate() method
see the android lifeCycle to understand why :https://developer.android.com/guide/components/activities/activity-lifecycle.html
Your code is out of your method, Change it to this:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button SuSe = (Button) findViewById(R.id.SuSe);
SuSe.setOnClickListener()
{
new View.OnClickListener() {
#Override
public void onClick(View view){
}
};
}
}
Do Button initialization and adding listener to Button inside onCreate() method.
Try this:
package org.flinthill.finalprojectv2;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.view.View.OnClickListener;
import android.widget.Toast;
import android.text.method.DigitsKeyListener;
import android.text.InputFilter;
public class mainactivity extends AppCompatActivity {
Button SuSe;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SuSe = (Button) findViewById(R.id.SuSe);
SuSe.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Do something
}
});
}
}
public class MainActivity extends AppCompatActivity implements
TopSectionFragment.TopSectionListener {
When I try to implement the TopSectionFragment the writing goes red and, then it says Cannot resolve symbol when my mouse goes over it.
This is all happening in Android Studio.
My MainActivity.java looks like this:
package com.example.danielhunter.fragments;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;`
public class MainActivity extends AppCompatActivity
implements TopSectionFragment.TopSectionListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
My TopSectionFragment.java looks liks this:
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.view.ViewGroup;
import android.view.View;
import android.view.LayoutInflater;
import android.support.v4.app.Fragment;
import android.widget.Button;
import android.widget.EditText;
import android.app.Activity;
import com.example.danielhunter.fragments.R;
public class TopSectionFragment extends Fragment {
private static EditText topTextInput;
private static EditText bottomTextInput;
TopSectionListener activityCommander;
public interface TopSectionListener{
public void createMeme(String top,String bottom);
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try{
activityCommander = (TopSectionListener) activity;
}catch (ClassCastException e){
throw new ClassCastException(activity.toString());
}
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.top_section_fragment, container, false);
topTextInput = (EditText) view.findViewById(R.id.topTextInput);
bottomTextInput = (EditText) view.findViewById(R.id.bottomTextInput);
final Button button = (Button) view.findViewById(R.id.button);
button.setOnClickListener(
new View.OnClickListener(){
public void onClick(View v){
buttonClicked(v);
}
}
);
return view;
}
// calls this when the button is clicked
public void buttonClicked(View view){
activityCommander.createMeme(topTextInput.getText().toString(), bottomTextInput.getText().toString());
}
}
In order for a class to correctly implement an interface, it must include implementations of ALL the methods defined in the interface. In your case, MainActivity would need to have a method with the signature void createMeme(String top,String bottom) in order for this to compile.