android 浮动按钮

两个半透明的浮动按钮

private WindowManager wm = null;
private WindowManager.LayoutParams wmParams = null;
private Button play1;
private Button cache1;
private int mAlpha = 0;
private ViewFlipper viewFlipper = null;

@Override
protected void onResume() {
// TODO Auto-generated method stub
//启动的方法不用写在oncreate中
super.onResume();
System.out.println("resume");
initFloatview();
play1 = new Button(this);
cache1 = new Button(this);
createLeftButton();
createRightButton();
}

@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
//退出时删除
wm.removeView(play1);
wm.removeView(cache1);
}

private void initFloatview() {
wm = (WindowManager) getApplicationContext().getSystemService("window");
wmParams = new WindowManager.LayoutParams();
// wmParams=new WindowManager.LayoutParams();
// wmParams.type=LayoutParams.TYPE_PHONE;
// wmParams.format=PixelFormat.RGBA_8888;
// wmParams.flags=LayoutParams.FLAG_NOT_TOUCH_MODAL|LayoutParams.FLAG_NOT_FOCUSABLE;
// wmParams.x=0;
// wmParams.y=0;
// wmParams.width=100;
// wmParams.height=100;
}

// 左悬浮键
private void createLeftButton() {

wmParams.type = LayoutParams.TYPE_PHONE;
wmParams.format = PixelFormat.RGBA_8888;
wmParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL
| LayoutParams.FLAG_NOT_FOCUSABLE;
play1.setBackgroundResource(R.drawable.tab_selected);
play1.getBackground().setAlpha(100);
// play1.setAlpha(0);
play1.setText("播放");
play1.setOnTouchListener(new OnTouchListener() {

@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
if (event.getAction() == MotionEvent.ACTION_DOWN) {
play1.setBackgroundResource(R.drawable.tab_selected_focs);
} else if (event.getAction() == MotionEvent.ACTION_UP) {
play1
.setBackgroundResource(R.drawable.tab_selected_pressed);
cache1.setBackgroundResource(R.drawable.tab_selected);
cache1.getBackground().setAlpha(100);
}

return false;
}

});

play1.setOnClickListener(listener);
wmParams.width = 210;
wmParams.height = 60;
wmParams.gravity = Gravity.LEFT | Gravity.BOTTOM;
wmParams.x = 30;
wmParams.y = 10;
wm.addView(play1, wmParams);
}
// 右悬浮键
private void createRightButton() {
wmParams.type = LayoutParams.TYPE_PHONE;
wmParams.format = PixelFormat.RGBA_8888;
wmParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL
| LayoutParams.FLAG_NOT_FOCUSABLE;
cache1.setBackgroundResource(R.drawable.tab_selected);
cache1.getBackground().setAlpha(100);
cache1.setOnTouchListener(new OnTouchListener() {

@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
if (event.getAction() == MotionEvent.ACTION_DOWN) {
cache1.setBackgroundResource(R.drawable.tab_selected_focs);
} else if (event.getAction() == MotionEvent.ACTION_UP) {
cache1
.setBackgroundResource(R.drawable.tab_selected_pressed);
play1.setBackgroundResource(R.drawable.tab_selected);
play1.getBackground().setAlpha(100);
}
return false;
}
});
// cache1.setAlpha(0);
cache1.setText("缓存");
cache1.setOnClickListener(listener);
wmParams.width = 210;
wmParams.height = 60;
wmParams.gravity = Gravity.RIGHT | Gravity.BOTTOM;
wmParams.x = 30;
wmParams.y = 10;
wm.addView(cache1, wmParams);
}

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