闲来无事，搞一波悬浮球，此球：
无需权限
无需权限
无需权限
主要代码只有一个类，简简单单放进自己的工程
悬浮球可以用来干啥：
打开侧滑界面
打开一排小按钮
打开客服等等
功能：
显示红点(接收到信息等场景)
关闭红点(关闭消息提示)
自动贴边
显示球
隐藏球
自定义点击事件及回调
可以说你能想到自定义的都可以自定义，因为下面会给出代码，任君扩展
先看看效果如何，图片大小有限制，所以我录得比较急一些，效果不是很好。
xghs2-gmnja.gif
这个悬浮球，我自觉还是蛮棒的，以下给出主要代码：
MainActivity.class
public class MainActivity extends Activity {
protected Button toButton,noButton,exitButton,jumpButton;
protected Context mContext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initVariables();
initViews(savedInstanceState);
loadData();
//造个悬浮球，并显示出来
SyFloatView.getInstance(this).show();
//这里可以根据需求，添加点击事件处理
SyFloatView.getInstance(this).setListener(new SyFloatView.FloatingLayerListener() {
@Override
public void onClick() {
//点击悬浮球事件
Log.e("MainAc","这是 点击悬浮球 监听回调。");
}
@Override
public void onClose() {
//关闭悬浮球事件
Log.e("MainAc","这是 关闭悬浮球 监听回调。");
}
});
}
@Override
protected void onResume() {
super.onResume();
//显示悬浮球：进入APP、登陆成功等场景下
SyFloatView.getInstance(mContext).display();
}
@Override
protected void onPause() {
super.onPause();
//隐藏悬浮球：回到桌面等场景
SyFloatView.getInstance(mContext).hide();
}
//关闭APP
protected void exitApp(){
//干掉悬浮球：可以在关闭APP、注销账号等场景下使用
SyFloatView.getInstance(mContext).close();
System.exit(0);
finish();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch(keyCode){
case KeyEvent.KEYCODE_BACK:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("退出提示");
builder.setMessage("确认要退出APP？");
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { //设置确定按钮
@Override
public void onClick(DialogInterface dialog, int which) {
exitApp();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { //设置取消按钮
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
break;
}
return true;
}
//初始化
protected void initVariables() {
mContext = (Activity)this;
}
//初始化视图
protected void initViews(Bundle savedInstanceState) {
setContentView(R.layout.activity_main);
toButton = (Button) findViewById(R.id.to_btn);
noButton = (Button) findViewById(R.id.no_btn);
exitButton = (Button) findViewById(R.id.exit_app_btn);
jumpButton = (Button) findViewById(R.id.jump_btn);
//来消息了，显示消息红点
toButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SyFloatView.getInstance(mContext).redDotVisible();
}
});
//朕已阅，点击关掉消息红点
noButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SyFloatView.getInstance(mContext).redDotViewGone();
}
});
//关闭APP
exitButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
exitApp();
}
});
//跳转下一个Activity
jumpButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(MainActivity.this,MainActivity2.class);
startActivity(i);
}
});
}
//数据处理
protected void loadData() {
}
}
悬浮球代码，任君自定义，仅仅这一个类
public class SyFloatView {
private static SyFloatView sFloatingLayer;
private static final String TAG = "SyFloatView";
public static boolean IS_SHOW_BALL = false;
private WindowManager mWindowManager;
private WindowManager.LayoutParams mLayoutParams,halfPop_mLayoutParams;
private Context mContext;
private final int TOUCH_TIME_THRESHOLD = 150;
private View mPopView;
private float stickRightWidth;
private AnimationTimerTask mAnimationTask;
private Timer mAnimationTimer;
private GetTokenRunnable mGetTokenRunnable;
private long mLastTouchDownTime;
private FloatingLayerListener mListener;
private int mWidth,mHeight;
private float mPrevX, xInScreen, xDownInScreen;
private float mPrevY, yInScreen, yDownInScreen;
private int mAnimationPeriodTime = 16;
private static ImageView barRed, ballImage;
private Handler mHandler = new Handler();
private long lastClickTime;
public static SyFloatView getInstance(Context context) {
if (null == sFloatingLayer) {
synchronized (SyFloatView.class) {
if (null == sFloatingLayer) {
sFloatingLayer = new SyFloatView(context);
}
}
}
return sFloatingLayer;
}
private SyFloatView(Context context) {
this.mContext = context;
initView();
initWindowManager();
initLayoutParams();
initDrag();
}
private void initView() {
LayoutInflater layoutInflater = (LayoutInflater) ((Activity)mContext).getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mPopView = layoutInflater.inflate(R.layout.sy_floating_view, null);
//这里可以自定义图片，消息红点
barRed = (ImageView) mPopView.findViewById(R.id.barRed);
ballImage = (ImageView) mPopView.findViewById(R.id.pop);
}
private void initWindowManager() {
mWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
}
private void initLayoutParams() {
mWidth = mContext.getResources().getDisplayMetrics().widthPixels;
mHeight = mContext.getResources().getDisplayMetrics().heightPixels;
mLayoutParams = new WindowManager.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS,
PixelFormat.TRANSLUCENT);
mLayoutParams.gravity = Gravity.TOP | Gravity.LEFT;
//初始显示的位置
mLayoutParams.x = 0;
mLayoutParams.y = mContext.getResources().getDisplayMetrics().heightPixels / 3 * 2;
}
private void initDrag() {
mPopView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
switch (motionEvent.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
mLastTouchDownTime = System.currentTimeMillis();
handler.removeMessages(1);
xInScreen = mPrevX = motionEvent.getRawX();
yInScreen = mPrevY = motionEvent.getRawY();
break;
case MotionEvent.ACTION_MOVE:
float deltaX = motionEvent.getRawX() - mPrevX;
float deltaY = motionEvent.getRawY() - mPrevY;
mLayoutParams.x += deltaX;
mLayoutParams.y += deltaY;
xDownInScreen = mPrevX = motionEvent.getRawX();
yDownInScreen = mPrevY = motionEvent.getRawY();
if (mLayoutParams.x < 0) mLayoutParams.x = 0;
if (mLayoutParams.x > mWidth - mPopView.getWidth())
mLayoutParams.x = mWidth - mPopView.getWidth();
if (mLayoutParams.y < 0) mLayoutParams.y = 0;
if (mLayoutParams.y > mHeight - mPopView.getHeight() * 2)
mLayoutParams.y = mHeight - mPopView.getHeight() * 2;
try {
mWindowManager.updateViewLayout(mPopView, mLayoutParams);
} catch (Exception e) {
Log.d(TAG, e.toString());
}
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
if (isOnClickEvent()) {
//添加点击事件
if (isFastDoubleClick()) {
//防止连续点击，如果连续点击这里什么也不做
} else {
Toast.makeText(mContext, "你点击了悬浮球", Toast.LENGTH_SHORT).show();
//点击就让消息红点消失
redDotViewGone();
};
if (mListener != null) {
mListener.onClick();
}
}
if (mLayoutParams.x == stickRightWidth) {
mLayoutParams.x = mLayoutParams.x - mPopView.getWidth() / 2;
mWindowManager.updateViewLayout(mPopView, mLayoutParams);
sendMsgToHidePop();
return false;
}
mAnimationTimer = new Timer();
mAnimationTask = new AnimationTimerTask();
mAnimationTimer.schedule(mAnimationTask, 0, mAnimationPeriodTime);
sendMsgToHidePop();
break;
}
return false;
}
});
}
//防止连续点击
private boolean isFastDoubleClick() {
long time = System.currentTimeMillis();
if (time - lastClickTime < 500) {
return true;
}
lastClickTime = time;
return false;
}
protected boolean isOnClickEvent() {
return System.currentTimeMillis() - mLastTouchDownTime < TOUCH_TIME_THRESHOLD;
}
/**
* 创建悬浮球并显示出来
*/
public void show() {
if (!IS_SHOW_BALL) {
mGetTokenRunnable = new GetTokenRunnable(((Activity)mContext));
mHandler.postDelayed(mGetTokenRunnable, 500);
IS_SHOW_BALL = true;
}
}
/**
* 杀掉悬浮球
*/
public void close() {
try {
if (IS_SHOW_BALL) {
mWindowManager.removeViewImmediate(mPopView);
if (null != mListener) mListener.onClose();
IS_SHOW_BALL = false;
}
} catch (Exception e) {
Log.d(TAG, e.toString());
}
}
/**
* 隐藏悬浮球
*/
public void hide() {
if (mPopView != null) mPopView.setVisibility(View.INVISIBLE);
}
/**
* 显示悬浮球
*/
public void display() {
if (mPopView != null) mPopView.setVisibility(View.VISIBLE);
}
/**
* 显示悬浮球的红点
*/
public void redDotVisible() {
if (barRed != null) barRed.setVisibility(View.VISIBLE);
}
/**
* 隐藏悬浮球的红点
*/
public void redDotViewGone() {
if (barRed != null) barRed.setVisibility(View.GONE);
}
public SyFloatView setListener(FloatingLayerListener listener) {
if (null != sFloatingLayer) this.mListener = listener;
return sFloatingLayer;
}
/**
* 监听接口
*/
public interface FloatingLayerListener {
void onClick();
void onClose();
}
/**
* handler处理：隐藏半球
*/
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (msg.what) {
case 1:
hidePop();
break;
default:
break;
}
}
};
private static boolean isNearLeft = true;
class AnimationTimerTask extends TimerTask {
int mStepX;
int mDestX;
public AnimationTimerTask() {
if (mLayoutParams.x > mWidth / 2) {
isNearLeft = false;
mDestX = mWidth - mPopView.getWidth();
mStepX = (mWidth - mLayoutParams.x) / 10;
} else {
isNearLeft = true;
mDestX = 0;
mStepX = -((mLayoutParams.x) / 10);
}
}
@Override
public void run() {
if (Math.abs(mDestX - mLayoutParams.x) <= Math.abs(mStepX)) {
mLayoutParams.x = mDestX;
} else {
mLayoutParams.x += mStepX;
}
try {
mHandler.post(new Runnable() {
@Override
public void run() {
mWindowManager.updateViewLayout(mPopView, mLayoutParams);
}
});
} catch (Exception e) {
Log.d(TAG, e.toString());
}
if (mLayoutParams.x == mDestX) {
mAnimationTask.cancel();
mAnimationTimer.cancel();
}
}
}
public void sendMsgToHidePop() {
Message msg = new Message();
msg.what = 1;
handler.sendMessageDelayed(msg, 2500);
}
/**
* 隐藏悬浮球一半，贴在边缘
*/
private void hidePop() {
halfPop_mLayoutParams = mLayoutParams;
if (isNearLeft) {
halfPop_mLayoutParams.x = -(mPopView.getWidth() / 2);
} else {
halfPop_mLayoutParams.x = mLayoutParams.x + (mPopView.getWidth() / 2);
stickRightWidth = halfPop_mLayoutParams.x;
}
try {
mWindowManager.updateViewLayout(mPopView, halfPop_mLayoutParams);
} catch (Exception e) {
Log.d(TAG, "hidePop E :" + e.toString());
}
}
class GetTokenRunnable implements Runnable {
int count = 0;
private Activity mActivity;
public GetTokenRunnable(Activity activity) {
this.mActivity = activity;
}
@Override
public void run() {
if (null == mActivity) return;
IBinder token = null;
try {
token = mActivity.getWindow().getDecorView().getWindowToken();
} catch (Exception e) {
}
if (null != token) {
try {
mLayoutParams.token = token;
if (mWindowManager != null && mPopView != null && mLayoutParams != null)
mWindowManager.addView(mPopView, mLayoutParams);
mActivity = null;
return;
} catch (Exception e) {
}
}
count++;
mLayoutParams.token = null;
if (count < 10 && null != mLayoutParams) {
mHandler.postDelayed(mGetTokenRunnable, 500);
}
}
}
}
这个悬浮球，是别人送我的一个球，我自己修修改改缝缝补补就发来了，大家鼓掌👏。
有个小问题，华为现在手势直接左右侧滑屏可以退出APP，这个退出又不似真的杀死APP。再打开APP悬浮球就出不来了，也不知道哪里导致的，莫名其妙，我目前是把返回按钮那里直接处理了一下，弹出个询问是否退出。有人如果发现原因的话，麻烦留言教我一哈。
最后附上demo源码地址，方便你把工程放进你的项目，能帮我再优化一下那就更加万分感谢了。
欢迎各位点赞、评论、转发！
