小编yas*_*dar的帖子

我有一个自定义按钮,并通过编程方式更改其按下和默认颜色.

public class CustomApplicationButton extends Button {

public CustomApplicationButton(Context context) {
    this(context, 0, 0, 0);
}

public CustomApplicationButton(Context context, int topDrawableResId, int outlineDefaultColorId, int outlinePressedColorId) {
    super(context);

    // set width and height
    LinearLayout.LayoutParams params = new LayoutParams(
            context.getResources().getDimensionPixelSize(R.dimen.sr_application_button_width), 
            context.getResources().getDimensionPixelSize(R.dimen.sr_application_button_height));
    setLayoutParams(params);

    // set drawable top icon
    if (topDrawableResId != 0) {
        setCompoundDrawablesWithIntrinsicBounds(0, topDrawableResId, 0, 0);
    }

    // set background and outline color

    int strokeWidth = context.getResources().getDimensionPixelSize(R.dimen.sr_launcher_button_stroke_size);

    // unpressed state drawable
    LayerDrawable defaultLayers = (LayerDrawable) context.getResources().getDrawable(
            R.drawable.btn_launcher_shape_default);
    GradientDrawable defaultShapeOutline = (GradientDrawable) defaultLayers.findDrawableByLayerId(R.id.outline_default); …