首先,介绍下作用,及功能,
利用service创建悬浮框,然后这个悬浮框不能影响界面其他的按键,所以需要拖动,然后并且放大状态是放在中间,缩小放在左;
注意:自己的布局宽高不能使用FILL_PARENT,以及
wmParams.gravity不一样,然后默认的x,y不一样,所以需要是情况而定,并且拖动更新wmParams的x,y也一样,要视情况而定取值;
例如:
1.wmParams.gravity = Gravity.BOTTOM;
wmParams.x = 0;
wmParams.y =0;
整个布局显示在底部中间位置;
2.wmParams.gravity 为默认值;
wmParams.x = 0;
wmParams.y =0;
整个布局显示在中间位置;
1.创建管理器:
WindowManager mWindowManager = (WindowManager) getApplication().getSystemService(getApplication().WINDOW_SERVICE);
2.设置布局:
LayoutParams wmParams = new LayoutParams();
wmParams.type = LayoutParams.TYPE_PHONE;//设置类型
//wmParams.type = LayoutParams.LAST_APPLICATION_WINDOW
wmParams.format = PixelFormat.TRANSLUCENT; //设置形式
wmParams.flags = LayoutParams.FLAG_NOT_FOCUSABLE;
// wmParams.gravity = Gravity.BOTTOM;
// wmParams.x = 0; //坐标
// wmParams.y = 0;//坐标
//获取屏的高和宽
DisplayMetrics dm = new DisplayMetrics();
WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
display.getMetrics(dm);
int widthPixels = dm.widthPixels;
int heightPixels = dm.heightPixels;
float density = dm.density;
screenWidth = (int) (widthPixels * density);
screenHeight = (int) (heightPixels * density);
/*设置布局的位置距离底部40dp,水平居中*/
wmParams.x = 0;
wmParams.y = screenHeight /2 - 40;
wmParams.width = LayoutParams.WRAP_CONTENT;
// wmParams.height = LayoutParams.WRAP_CONTENT;
// if( heightPixels<500 )
// if( dm.densityDpi>200 )
wmParams.height = 70;
3.添加布局:
LayoutInflater inflater = LayoutInflater.from(getApplication());
mFloatTopLayout = (RelativeLayout) inflater.inflate(
R.layout.menu_float_top, null);
floatBig = (ImageView) mFloatTopLayout.findViewById(R.id.iv_float_big);
floatSmall = (ImageView) mFloatTopLayout.findViewById(R.id.iv_float_small);
mWindowManager.addView(mFloatTopLayout, wmParams);
4.触摸拖动效果
floatSmall.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
llFloatBottom.setVisibility(View.GONE);
floatBig.setVisibility(View.VISIBLE);
// wmParams.gravity = Gravity.LEFT;
wmParams.x = (int) (-screenWidth);
mWindowManager.updateViewLayout(mFloatTopLayout, wmParams);
/* if (top.contains("SystemWifiActivity")) {
showFloatLeftLayout();
} else {
llFloatBottom.setVisibility(View.GONE);
floatBig.setVisibility(View.VISIBLE);
}*/
}
});
floatBig.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
llFloatBottom.setVisibility(View.VISIBLE);
floatBig.setVisibility(View.GONE);
updateMiddleView();
}
});
floatBig.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
return iTouch(v,event);
}
});
private void updateMiddleView() {
wmParams.x = 0;
wmParams.y = screenHeight / 2 - MARGIN_BOTTOM;
// wmParams.gravity = Gravity.CENTER_HORIZONTAL;
mWindowManager.updateViewLayout(mFloatTopLayout, wmParams);
}
private boolean iTouch(View v, MotionEvent event) {
boolean bret = false;
Rect frame = new Rect();
mFloatTopLayout.getWindowVisibleDisplayFrame(frame);
//int statusBarHeight = frame.top;
x = event.getRawX();
y = event.getRawY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mTouchX = (event.getX()+v.getLeft());
mTouchY = (event.getY()+v.getTop());
//mTouchX = event.getX();
//mTouchY = event.getY();
bMoved = false;
x1 = event.getX();
y1 = event.getY();
break;
case MotionEvent.ACTION_MOVE:
updateViewPosition();
bMoved = true;
break;
case MotionEvent.ACTION_UP:
//updateViewPosition();
mTouchX = mTouchY = 0;
if( bMoved )
bret = true;
bMoved = false;
x2 = event.getX();
y2 = event.getY();
break;
}
return bret;
}
private void updateViewPosition() {
try {
mLastX = wmParams.x = (int) (x - mTouchX - screenWidth / 2);
mLastY = wmParams.y = (int) (y - mTouchY - screenHeight / 2);
Log.e("www", "mTouchX = " + mTouchX + ",mTouchY = " + mTouchY);
Log.e("www", "x = " + x + ",y = " + y);
//wmParams.width = LayoutParams.WRAP_CONTENT;
//wmParams.height = LayoutParams.WRAP_CONTENT;
mWindowManager.updateViewLayout(mFloatTopLayout, wmParams);
} catch (Exception e) {
}
}
5.补充下这个代码的xml文件:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/iv_float_big"
android:visibility="gone"
android:background="@drawable/selector_video_big"
android:layout_centerVertical="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<LinearLayout
android:id="@+id/ll_float_bottom"
android:background="@drawable/float_bottom_bg"
android:orientation="horizontal"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/iv_float_home"
android:background="@drawable/selector_float_home"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView
android:id="@+id/iv_float_back"
android:background="@drawable/selector_float_back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView
android:id="@+id/iv_float_voice"
android:background="@drawable/selector_float_volum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView
android:id="@+id/iv_float_clear"
android:background="@drawable/selector_float_clear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView
android:id="@+id/iv_float_small"
android:background="@drawable/selector_float_small"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
</RelativeLayout>
网友评论