I have a lot of RadioButtons (which are added dynamically through Java) in a RadioGroup which is in a ScrollView. The problem is that I don't know how to resize it so it fits on the screen. My code:
ConstraintLayout layout = (ConstraintLayout) findViewById(R.id.layout);
RadioGroup radioGroup = new RadioGroup(this);
LinearLayout.LayoutParams p = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.FILL_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT
);
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener()
{
#Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
btnEditFolder.setEnabled(true);
btnViewFolder.setEnabled(true);
}
});
for(int i =0; i<foldersArray.length;i++)
{
RadioButton radioButtonView = new RadioButton(this);
radioButtonView.setText(foldersArray[i]);
radioGroup.addView(radioButtonView, p);
}
ScrollView svFolders = new ScrollView(getApplicationContext());
ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
radioGroup.setLayoutParams(params);
radioGroup.getLayoutParams().height = screenHeight - 300;
svFolders.setX(50);
svFolders.setY(100 + btnEditFolder.getMeasuredHeight());
svFolders.addView(radioGroup);
layout.addView(svFolders, p);
The ScrollView is placed further down the y-axis and I think it's still the same height as the screen making it go off the screen.
Here's a screenshot
Related
I have programmatically added Card View. I just want to make it clickable and show animation while it is clicked. Here is my Code
CardView cardView = new CardView(this);
LayoutParams layoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
cardView.setLayoutParams(layoutParams);
cardView.setRadius(15);
cardView.setPadding(25, 25, 25, 25);
cardView.setCardBackgroundColor(Color.MAGENTA);
TextView textView = new TextView(this);
textView.setLayoutParams(layoutParams);
textView.setText("Programmatically set");
textView.setGravity(Gravity.CENTER);
textView.setTextColor(Color.WHITE);
cardView.addView(textView);
LinearLayout linearLayout = findViewById(R.id.linearLayout1);
linearLayout.addView(cardView);
int[] attrs = new int[]{R.attr.selectableItemBackground};
TypedArray typedArray = this.obtainStyledAttributes(attrs);
int selectableItemBackground = typedArray.getResourceId(0, 0);
typedArray.recycle();
cardView.setForeground(this.getDrawable(selectableItemBackground));
cardView.setClickable(true);
With the Material Components Library just use:
cardView.setRippleColor(ContextCompat.getColorStateList(this,R.color.selector_card));
You can use this:
cardView.setClickable(true);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
TypedValue typedValue = new TypedValue();
getContext().getTheme().resolveAttribute(android.R.attr.selectableItemBackground, typedValue, true);
cardView.setBackgroundResource(typedValue.resourceId);
}
I have app about surveys. I list all active surveys in RecyclerView.
In the bottom of RecyclerView custom item, I add profile pictures of users who attendant to that survey (like in facebook - seen by bla bla)
I decided to implement imageview to that layout horizontally with params, somehow i couldn't and images are not displaying on item.
Here is my OnBindViewHolder(Other parts work well)
#Override
public void onBindViewHolder(ViewHolder holder, final int position) {
Picasso.with(context)
.load(surveyList.get(position).getItem_image())
.into(holder.item_survey_image);
String imageStringList = surveyList.get(position).getItem_survey_users_image();
List<String> splitList = Arrays.asList(imageStringList.split(","));
for(int i=0; i<splitList.size(); i++){
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT, 20);
Glide.with(context)
.load(splitList.get(i))
.into(holder.item_survey_users_image);
if (holder.item_survey_users_image.getParent() != null)
((ViewGroup) holder.item_survey_users_image.getParent()).removeView(holder.item_survey_users_image);
holder.item_layout_users.addView(holder.item_survey_users_image, layoutParams);
}
holder.item_survey_head.setText(surveyList.get(position).getItem_survey_head());
holder.item_survey_desc.setText(surveyList.get(position).getItem_survey_desc());
holder.item_survey_amount.setText(surveyList.get(position).getItem_survey_amount());
holder.item_survey_time.setText(surveyList.get(position).getItem_survey_time());
holder.item_survey_users.setText(surveyList.get(position).getItem_survey_users());
holder.item_cardview.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(context, ""+position, Toast.LENGTH_SHORT).show();
}
});
}
how you can tell the picture absence is caused by layoutparams ? however here is how you implement a layoutParams in your OnBindViewHolder, say you have RelativeLayout
RelativeLayout.LayoutParams params
=new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.MATCH_PARENT);
params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
params.setMargins(0, 0, 0, 0); //if you need margins
holder.item_survey_image.setLayoutParams(params);
First of all, the app looks like this.
How to make - if I click on Add, on its column the textview is updated with value + 1?
I'm creating TextView and Button in a Loop;
for(int i = 0;i < playercountint; i++)
{
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
layout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT,(100/playercountint)));
layout.setGravity(Gravity.CENTER_HORIZONTAL);
TextView tt = new TextView(this);
tt.setText("0");
tt.setTextSize(14);
tt.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
tt.setGravity(Gravity.CENTER_HORIZONTAL);
Button btadd = new Button(this);
btadd.setText("Add");
btadd.setId(2);
btadd.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
????? what here?
}
});
}
What should be written in onClick function , so only TextView value which is in buttons column is changed.
There is one outer LinearLayout which is horizontally oriented, and those which are created within a loop is vertical Linear Layouts.
Maybe i should create a template for 1 loop iteration?
First make your textview final and them set it's value in onClick
for(int i = 0;i < playercountint; i++)
{
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
layout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT,(100/playercountint)));
layout.setGravity(Gravity.CENTER_HORIZONTAL);
final TextView tt = new TextView(this);
tt.setText("0");
tt.setTextSize(14);
tt.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
tt.setGravity(Gravity.CENTER_HORIZONTAL);
Button btadd = new Button(this);
btadd.setText("Add");
btadd.setId(2);
btadd.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
tt.setText(String.valueOf(Integer.parseInt(tt.getText())+1));
}
});
}
You can write one function that returns linearlayout:
public View getPlayerView(){
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
layout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT,(100/playercountint)));
layout.setGravity(Gravity.CENTER_HORIZONTAL);
final TextView tt = new TextView(this);
tt.setText("0");
tt.setTextSize(14);
tt.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
tt.setGravity(Gravity.CENTER_HORIZONTAL);
Button btadd = new Button(this);
btadd.setText("Add");
btadd.setId(2);
btadd.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
tt.setText(String.valueOf(Integer.parseInt(tt.getText())+1));
}
});
layout.add(tt);
layout.add(btadd);
return layout;
}
Call this function in a loop.
tt.setText("something");
tt.invalidate();
my bad I didn't even notice it was a for loop uh you need to hold a reference to the text view.. make your textview final
tt.setText(Integer.parse(tt.getText().toString()) + 1);
But, I strongly recommend you design UI (layout) in the *.xml file!
See more: http://developer.android.com/guide/topics/ui/declaring-layout.html
You should provide your TextView with an unique id (.setId(...)). Having this, in your onClick method simply use something like this:
final TextView tv = (TextView) findViewById(R.id.your_textview_id);
final String cur_text = tv.getText();
Integer plus_one = Integer.valueOf(cur_text);
plus_one++;
tv.setText(plus_one.toString());
Didn't try it but should work.
static int counter = 0;
btn_Add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
counter ++;
tv_Display.setText("Your Total is : " + counter);
}
});
I am dynamically creating the buttons. But the problem is they are getting created from top. I want to create it from bottom .
public class MainActivity extends Activity implements View.OnClickListener {
int i, j, butNum, lay1num = 1, lay2num = 100, lay3num = 100, store;
Button[] Button;
EditText numBut;
LinearLayout mainLayout;
LinearLayout[] subLayout;
LinearLayout.LayoutParams params;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
butNum = 5;
Button = new Button[butNum];
subLayout = new LinearLayout[3];
LinearLayout mainLayout = new LinearLayout(this);
mainLayout.setOrientation(LinearLayout.HORIZONTAL);
mainLayout.setWeightSum(90);
mainLayout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
layoutGen();
for (j = 0; j < butNum; j++) {
int value = j + 1;
Button[j] = new Button(this);
Button[j].setText("" + value);
Button[j].setLayoutParams(new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
Button[j].setTextSize(20);
Button[j].setTag(value);
Button[j].setId(j);
subLayout[0].addView(Button[j]);
Button[j].setOnClickListener(this);
}
mainLayout.addView(subLayout[0], params);
setContentView(mainLayout);
}
Is there anyway I can create buttons which are aligned to the bottom.
subLayout.setGravity(Gravity.BOTTOM);
You nay need to set size of layout to match_parent.
Eventually You may set a layout_gravity like here
String[] textArray={"one","two","asdasasdf asdf dsdaa"};
int length=textArray.length;
RelativeLayout layout = new RelativeLayout(this);
RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
for(int i=0;i<length;i++){
TextView tv=new TextView(getApplicationContext());
tv.setText(textArray[i]);
relativeParams.addRule(RelativeLayout.BELOW, tv.getId());
layout.addView(tv, relativeParams);
}
I need to do something like that.. so it would display as
one
two
asdfasdfsomething
on the screen..
If it's not important to use a RelativeLayout, you could use a LinearLayout, and do this:
LinearLayout linearLayout = new LinearLayout(this);
linearLayout.setOrientation(LinearLayout.VERTICAL);
Doing this allows you to avoid the addRule method you've tried. You can simply use addView() to add new TextViews.
Complete code:
String[] textArray = {"One", "Two", "Three", "Four"};
LinearLayout linearLayout = new LinearLayout(this);
setContentView(linearLayout);
linearLayout.setOrientation(LinearLayout.VERTICAL);
for( int i = 0; i < textArray.length; i++ )
{
TextView textView = new TextView(this);
textView.setText(textArray[i]);
linearLayout.addView(textView);
}
Try this code:
final String[] str = {"one","two","three","asdfgf"};
final RelativeLayout rl = (RelativeLayout) findViewById(R.id.rl);
final TextView[] tv = new TextView[10];
for (int i=0; i<str.length; i++)
{
tv[i] = new TextView(this);
RelativeLayout.LayoutParams params=new RelativeLayout.LayoutParams
((int)LayoutParams.WRAP_CONTENT,(int)LayoutParams.WRAP_CONTENT);
params.leftMargin = 50;
params.topMargin = i*50;
tv[i].setText(str[i]);
tv[i].setTextSize((float) 20);
tv[i].setPadding(20, 50, 20, 50);
tv[i].setLayoutParams(params);
rl.addView(tv[i]);
}
public View recentView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Create a relative layout and add a button
relativeLayout = new RelativeLayout(this);
btn = new Button(this);
btn.setId((int)System.currentTimeMillis());
recentView = btn;
btn.setText("Click me");
relativeLayout.addView(btn);
setContentView(relativeLayout);
btn.setOnClickListener(new View.OnClickListener() {
#Overr ide
public void onClick(View view) {
//Create a textView, set a random ID and position it below the most recently added view
textView = new TextView(ActivityName.this);
textView.setId((int)System.currentTimeMillis());
layoutParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
layoutParams.addRule(RelativeLayout.BELOW, recentView.getId());
textView.setText("Time: "+System.currentTimeMillis());
relativeLayout.addView(textView, layoutParams);
recentView = textView;
}
});
}
This can be modified to display each element of a String array in different TextViews.
You're not assigning any id to the text view, but you're using tv.getId() to pass it to the addRule method as a parameter. Try to set a unique id via tv.setId(int).
You could also use the LinearLayout with vertical orientation, that might be easier actually. I prefer LinearLayout over RelativeLayouts if not necessary otherwise.