StateListDrawable

2024-08-15 10:25:39 216人阅读

Integer[] mButtonState = { R.drawable.defaultbutton,

R.drawable.focusedpressed, R.drawable.pressed };

Button mButton = (Button) findViewById(R.id.button);

mButton.setBackgroundDrawable(myButton.setbg(mButtonState));

public StateListDrawable setbg(Integer[] mImageIds) {

StateListDrawable bg = new StateListDrawable();

Drawable normal = this.getResources().getDrawable(mImageIds[0]);

Drawable selected = this.getResources().getDrawable(mImageIds[1]);

Drawable pressed = this.getResources().getDrawable(mImageIds[2]);

bg.addState(View.PRESSED_ENABLED_STATE_SET, pressed);

bg.addState(View.ENABLED_FOCUSED_STATE_SET, selected);

bg.addState(View.ENABLED_STATE_SET, normal);

bg.addState(View.FOCUSED_STATE_SET, selected);

bg.addState(View.EMPTY_STATE_SET, normal);

return bg;

}

在输入法中有如下的使用

StateListDrawable mStateListDrawable = new StateListDrawable();

mStateListDrawable.addState(new int[] { android.R.attr.state_pressed }, getResources().getDrawable(mKeyBackgroundId));

mStateListDrawable.addState(new int[0], getResources().getDrawable(R.drawable.transparent));

StateListDrawable 可以通过如下的方法获取点击态的drawable:

StateListDrawable drawable = ((StateListDrawable)background);

drawable.setState(new int[]{android.R.attr.state_focused,android.R.attr.state_pressed});

来自为知笔记(Wiz)

StateListDrawable

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