Question

我正在使用Custom AlertDialog.Builder将SD卡中的图像显示到该警报对话框中。

如何使用Screen的全宽和高度来显示对话框，这是我的代码：

viewHolder.imageButtonView.setOnClickListener(new OnClickListener() {

  @Override
  public void onClick(View v) {

    final AlertDialog.Builder imageDialog = new AlertDialog.Builder(XRayActivity.this);

    final LayoutInflater inflater = (LayoutInflater) getApplicationContext().getSystemService(LAYOUT_INFLATER_SERVICE);

    View layout = inflater.inflate(R.layout.image_dialog, null);                       

    ImageView image = (ImageView) layout.findViewById(R.id.imageView);

    try
    {                       
        strFileName = arrayList.get(position).getFilename().toString();

        String file = Environment.getExternalStorageDirectory().getPath() + "/Pictures/XRays/" + strFileName;
        Bitmap bm = BitmapFactory.decodeFile(file);                              
        image.setScaleType(ImageView.ScaleType.FIT_XY);

        image.setImageBitmap(bm);
    } catch (Exception e) { 
        e.printStackTrace();
    }       

       imageDialog.setTitle(strFileName);
       imageDialog.setView(layout);
       imageDialog.setPositiveButton(android.R.string.ok, new 
       DialogInterface.OnClickListener(){

    public void onClick(DialogInterface dialog, int which) {

          dialog.dismiss();
         }                    
     });     

       imageDialog.create();
       imageDialog.show();

        }
    });

image_dialog.xml： -

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

在xml中，我只使用具有layout_width和layout_height的match_parent属性的ImageView。

Answer 1

您可以使用Dialog Fragment：

@Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        Dialog dialog = super.onCreateDialog(savedInstanceState);

        dialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);


        return dialog;
    }

    @Override
    public void onStart() {
        super.onStart();
        Dialog dialog = getDialog();
        if (dialog != null) {
            dialog.getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
            dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

        }
    }

Answer 2

您可以使用样式来执行此操作

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

setStyle(DialogFragment.STYLE_NORMAL, android.R.style.Theme_Black_NoTitleBar_Fullscreen);

}

使用屏幕的完整宽度和高度显示对话框

2 个答案: