Implementing custom dialog

Question

I'm implementing a custom dialog, but in the activity, I'm having a trouble. This is the code:

public class MainActivity extends Activity { private Button button; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); button = (Button) findViewById(R.id.buttonDialog); /*Add button listener*/ button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { /*Custom dialog*/ final Dialog dialog = new Dialog(this); dialog.setTitle("Cerrar App"); dialog.setContentView(R.layout.custom_dialog); //...

In the line final Dialog dialog = new Dialog(this); it's throwing me an error that says: The constructor Dialog(new View.OnClickListener(){}) is undefined.

What I'm doing wrong?

Blackbelt · Accepted Answer · 2014-01-21 14:14:03Z

6

Change

final Dialog dialog = new Dialog(this);

with

final Dialog dialog = new Dialog(MainActivity.this);

in your case this refers to inner onClickListener

answered Jan 21, 2014 at 14:14

Blackbelt

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2 Comments

masmic Over a year ago

Thanks, works! But, could you provide explanation about this? I don't understand why some cases acepts only This and others requires the class name before This

Blackbelt Over a year ago

this (keyword) refers to the object itself. In your case this refers to the "new OnClickListener()" object and since the argument of Dialog's constructor is a Context and not a View.OnClickListener, you get the error

vipul mittal · Accepted Answer · 2014-01-21 14:16:32Z

change:

final Dialog dialog = new Dialog(this);

to

final Dialog dialog = new Dialog(MainActivity.this);

Dakshesh Khatri · Accepted Answer · 2014-01-21 14:35:50Z

Dialog videoDialog = new Dialog(getApplicationContext()); videoDialog.requestWindowFeature(Window.FEATURE_NO_TITLE); videoDialog.setContentView(R.layout.video_dialoge); videoDialog.getWindow().setGravity( Gravity.BOTTOM | Gravity.CENTER_VERTICAL); WindowManager.LayoutParams lp = new WindowManager.LayoutParams(); Window window = videoDialog.getWindow(); lp.copyFrom(window.getAttributes()); lp.width = WindowManager.LayoutParams.FILL_PARENT; lp.height = WindowManager.LayoutParams.WRAP_CONTENT; window.setAttributes(lp); LinearLayout frmalbumb = (LinearLayout) videoDialog .findViewById(R.id.layout_album); LinearLayout frmcamera = (LinearLayout) videoDialog .findViewById(R.id.layout_camera); frmcamera.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent cameraIntent = new Intent( android.provider.MediaStore.ACTION_VIDEO_CAPTURE); startActivityForResult(cameraIntent, capturevideo); videoDialog.dismiss(); } }); frmalbumb.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent mediaChooser = new Intent(Intent.ACTION_GET_CONTENT); mediaChooser.setType("video/*"); startActivityForResult(mediaChooser, galleryVideo); videoDialog.dismiss(); } }); WindowManager.LayoutParams wmlp = videoDialog.getWindow() .getAttributes(); wmlp.gravity = Gravity.BOTTOM; wmlp.x = (img_btn_Video.getLeft() + (img_btn_Video.getLeft() / 2)); if (CommonUtilities.istablet == true) { wmlp.y = 69; } else { if (CommonUtilities.screen_height >= 1920) { wmlp.y = 130; }else if(CommonUtilities.screen_height<=854) { wmlp.y = 75; } else { wmlp.y = 90; } } videoDialog.getWindow().setBackgroundDrawable( new ColorDrawable(android.graphics.Color.TRANSPARENT)); videoDialog.show();

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