Android:更改 ImageView 大小无效

Android: Changing ImageView size is not working

我正在尝试更改我的 ImageView 大小,但我似乎无法同时更改宽度和高度。如果我只改变其中之一,那么一切正常,但是当我尝试改变两者时,只有宽度改变了。

我有 dp 的大小:宽度 22 和高度 38,我将它们转换为 px。还有另一种方法吗?我试过很多其他的方法,但似乎也没有用。

有人能告诉我,我应该做些什么不同的事情吗?

这是我的代码:

public GridLayout gridLayout;
public GridLayout.Spec row = GridLayout.spec(0);
public GridLayout.Spec col = GridLayout.spec(3);

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    gridLayout = (GridLayout) findViewById(R.id.gameGrid);
    createBlock();
}

public void createBlock() {
    ImageView block = new ImageView(this);
    block.setImageResource(R.drawable.red);

    if (gridLayout != null) {
        gridLayout.addView(block, new GridLayout.LayoutParams(row, col));

        int width_in_dp = 22, height_in_dp = 38;
        final float scale = getResources().getDisplayMetrics().density;
        int width_in_px = (int) (width_in_dp * scale + 0.5f);
        int height_in_px = (int) (height_in_dp * scale + 0.5f);

        ViewGroup.LayoutParams layoutParams = block.getLayoutParams();
        layoutParams.width = width_in_px;
        layoutParams.height = height_in_px;
        block.setLayoutParams(layoutParams);

    }
}

你试过和 blockscaleType 一起玩吗?默认是 fitCenter 但我通常选择 centerCropfitXYHere's a good webpage that describes the differences.

您可以通过ImageViewsetScaleType方法设置scaleType