小编Jam*_*don的帖子

我正在尝试裁剪从android中的库中选择的图像,如下所示.

Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(photoUri, "image/*");         
intent.putExtra("outputX", 400);
intent.putExtra("outputY", 300);
intent.putExtra("aspectX", 4);
intent.putExtra("aspectY", 3);
intent.putExtra("scale", true);
intent.putExtra("return-data", true);
startActivityForResult(intent, RESULT_CROP);

当我尝试将outputX和outputY设置为800,600时,它不起作用.上面的代码工作正常,但裁剪的图像看起来很模糊.任何人都可以建议如何裁剪图像,而不是太模糊.谢谢.

我试图在Android应用程序中的Canvas上绘制GridView,如下所示,但屏幕上没有显示任何内容.

            int width = 400;
    int height = 400;

            private String[] numbers = {"1", "2", "3", "4", "5", "6"};
    Bitmap bitmap = Bitmap.createBitmap(width, height, Config.RGB_565);     

    Canvas canvas = new Canvas(bitmap);

    canvas.drawColor(Color.YELLOW);

    GridView gridview = new GridView(MainActivity.this);
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, Android.R.layout.simple_list_item_1, numbers);
    gridview.setAdapter(adapter);

    LinearLayout layout = new LinearLayout(MainActivity.this);


    layout.addView(gridview);

    layout.measure(canvas.getWidth(), canvas.getHeight());
    layout.layout(0, 0, canvas.getWidth(), canvas.getHeight());

    layout.draw(canvas);

    ImageView imageView = (ImageView) findViewById(R.id.imageView1);

    imageView.setImageBitmap(bitmap);

任何人都可以在这里建议什么是错的？

谢谢.詹姆士