public class MainActivity
extends Activity {
private WindowManager mWindowManager;
private WindowManager.LayoutParams mLayout;
private DesktopLayout mDesktopLayout;
private long startTime;
// 声明屏幕的宽高
float x, y;
int top;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
createWindowManager();
createDesktopLayout();
Button btn =
(Button) findViewById(R.id.btn);
btn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDesk();
}
});
}
/**
* 创建悬浮窗体
*/
private void createDesktopLayout() {
mDesktopLayout =
new DesktopLayout(
this);
mDesktopLayout.setOnTouchListener(new OnTouchListener() {
float mTouchStartX;
float mTouchStartY;
@Override
public boolean onTouch(View v, MotionEvent event) {
// 获取相对屏幕的坐标，即以屏幕左上角为原点
x =
event.getRawX();
y = event.getRawY() - top;
// 25是系统状态栏的高度
Log.i("startP", "startX" + mTouchStartX + "====startY"
+
mTouchStartY);
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// 获取相对View的坐标，即以此View左上角为原点
mTouchStartX =
event.getX();
mTouchStartY =
event.getY();
Log.i("startP", "startX" + mTouchStartX + "====startY"
+
mTouchStartY);
long end = System.currentTimeMillis() -
startTime;
// 双击的间隔在 300ms以下
if (end < 300
) {
closeDesk();
}
startTime =
System.currentTimeMillis();
break;
case MotionEvent.ACTION_MOVE:
// 更新浮动窗口位置参数
mLayout.x = (
int) (x -
mTouchStartX);
mLayout.y = (
int) (y -
mTouchStartY);
mWindowManager.updateViewLayout(v, mLayout);
break;
case MotionEvent.ACTION_UP:
// 更新浮动窗口位置参数
mLayout.x = (
int) (x -
mTouchStartX);
mLayout.y = (
int) (y -
mTouchStartY);
mWindowManager.updateViewLayout(v, mLayout);
// 可以在此记录最后一次的位置
mTouchStartX = mTouchStartY = 0
;
break;
}
return true;
}
});
}
@Override
public void onWindowFocusChanged(
boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
Rect rect =
new Rect();
// /取得整个视图部分,注意，如果你要设置标题样式，这个必须出现在标题样式之后，否则会出错
getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);
top = rect.top;
//状态栏的高度，所以rect.height,rect.width分别是系统的高度的宽度
Log.i("top",""+
top);
}
/**
* 显示DesktopLayout
*/
private void showDesk() {
mWindowManager.addView(mDesktopLayout, mLayout);
finish();
}
/**
* 关闭DesktopLayout
*/
private void closeDesk() {
mWindowManager.removeView(mDesktopLayout);
finish();
}
/**
* 设置WindowManager
*/
private void createWindowManager() {
// 取得系统窗体
mWindowManager =
(WindowManager) getApplicationContext()
.getSystemService("window"
);
// 窗体的布局样式
mLayout =
new WindowManager.LayoutParams();
// 设置窗体显示类型――TYPE_SYSTEM_ALERT(系统提示)
mLayout.type =
WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
// 设置窗体焦点及触摸：
// FLAG_NOT_FOCUSABLE(不能获得按键输入焦点)
mLayout.flags =
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
// 设置显示的模式
mLayout.format =
PixelFormat.RGBA_8888;
// 设置对齐的方法
mLayout.gravity = Gravity.TOP |
Gravity.LEFT;
// 设置窗体宽度和高度
mLayout.width =
WindowManager.LayoutParams.WRAP_CONTENT;
mLayout.height =
WindowManager.LayoutParams.WRAP_CONTENT;
}
}
public class DesktopLayout
extends LinearLayout {
public DesktopLayout(Context context) {
super(context);
setOrientation(LinearLayout.VERTICAL);// 水平排列
//设置宽高
this.setLayoutParams(
new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
View view =
LayoutInflater.from(context).inflate(
R.layout.desklayout, null);
this.addView(view);
}
}
别忘了在AndroidManifest.xml中加入如下的权限：
public class DesktopLayout
extends LinearLayout {
public DesktopLayout(Context context) {
super(context);
setOrientation(LinearLayout.VERTICAL);// 水平排列
//设置宽高
this.setLayoutParams(
new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
View view =
LayoutInflater.from(context).inflate(
R.layout.desklayout, null);
this.addView(view);
}
}
转载于:https://www.cnblogs.com/jasonkent27/p/5076594.html
相关资源：android悬浮窗口
