View v = findViewById(R.id.img_layout); v.getBackground().setAlpha(77);// 设置背景图片透明度;0~255透明度值 View v = findViewById(R.id.img_layout); v.get
View v = findViewById(R.id.img_layout); v.getBackground().setAlpha(77);// 设置背景图片透明度;0~255透明度值 View v = findViewById(R.id.img_layout); v.get