设置背景图像代码

时间:2013-02-17 13:49:40

标签: android image background onclick wallpaper

  ImageView im1_b;
    im1_b = (ImageView)findViewById(R.id.b_01_b);
    im1_b.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            AlertDialog.Builder builder = new AlertDialog.Builder(Next_2Activity.this);
            builder.setTitle("Project Gmelon");
            builder.setMessage("Are you sure set Wallpaper?");
            builder.setNegativeButton("NO", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
               Toast.makeText(getApplicationContext(),
                       "You Select NO", Toast.LENGTH_LONG) .show();
                }
            });
            builder.setPositiveButton("YES", new DialogInterface.OnClickListener() {

                @Override
                public void onClick(DialogInterface dialog, int which) {

                    WallpaperManager myWallpaperManager
                    = WallpaperManager.getInstance(getApplicationContext());
                   try {
                    myWallpaperManager.setResource(R.drawable.b_01_i);
                   } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                   }
                    Toast.makeText(getApplicationContext(),
                           "Setting Complete, Thanks.", Toast.LENGTH_LONG) .show();
                }

            });

            builder.show();
        }
    });

我写了这样的代码来设置壁纸..但是

我的图片设置如下。 (http://wemakeucc.com/1.jpg

我想要这样.. (http://wemakeucc.com/2.JPG

我该怎么办??

EDIT1>

ImageView im1_b;
im1_b = (ImageView)findViewById(R.id.b_01_b);
im1_b.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
im1_b.setOnClickListener(new OnClickListener() {

1 个答案:

答案 0 :(得分:0)

如果您想在代码中执行此操作,可以执行以下操作:

YOUR_IMAGE_VIEW.setScaleType(ImageView.ScaleType.CENTER_INSIDE);

如果您愿意,可以选择使用其他比例类型而不是CENTER_INSIDE!

如果要在xml中执行此操作,请使用所需的缩放类型设置scaleType属性:

android:scaleType="centerInside"

点击此链接查看比例类型:Scale Types