CODEWITHSUNDEEP
androidandroid-layoutandroid-widget
Zin Win Htet
Zin Win Htet

Reputation: 2563

How to get another widget from the same layout?

My code is as follow. I just don't wanna set an id to my EditText and findViewById. Because I'm building dynamic ui. So static id is useless for me. I'm now trying to get the EditText from the linearLayout but it didn't work yet. Any idea ?

LinearLayout linearLayout = new LinearLayout(this);
LayoutParams cbLayoutParams = new LayoutParams(
                            LayoutParams.WRAP_CONTENT,
                            LayoutParams.WRAP_CONTENT);
                    locationLayout.setLayoutParams(cbLayoutParams);
                    locationLayout.setOrientation(LinearLayout.VERTICAL);

EditText edtText = new EditText(this);
edtText.setEnable(false);
edtText.setLayoutParams(new LayoutParams(150,50));
linearLayout.addView(edtText);

Button button = new Button(this);
button.setText("say hello");
button.setOnClickListener(new OnClickListener(){
     @Override
     public void onClick(View v){
         EditText edt = null;
         for(int i=0; i<linearLayout.getChildCount();i++){
            Class<?> c = (Class<?>) linearLayout.getChildAt(i).getClass();
            if(c.getName().equals("android.widget.EditText")){
                edt = (EditText) linearLayout.getChildAt(i);
            }
         }
         edt.setText("hello");
     }
});

Upvotes: 0

Views: 31

Answers (1)

Maciej Ciemięga
Maciej Ciemięga

Reputation: 10715

You need to make your EditText final.

final EditText edtText = new EditText(this);

And then you can use your final edtText reference inside button's onClick:

LinearLayout linearLayout = new LinearLayout(this);
LayoutParams cbLayoutParams = new LayoutParams(
                            LayoutParams.WRAP_CONTENT,
                            LayoutParams.WRAP_CONTENT);
                    locationLayout.setLayoutParams(cbLayoutParams);
                    locationLayout.setOrientation(LinearLayout.VERTICAL);

final EditText edtText = new EditText(this);
edtText.setEnabled(false);
edtText.setLayoutParams(new LayoutParams(150,50));
linearLayout.addView(edtText);

Button button = new Button(this);
button.setText("say hello");
button.setOnClickListener(new OnClickListener(){
     @Override
     public void onClick(View v){
         edtText.setText("hello");
     }
});

Upvotes: 1

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