解决小米，魅族手机打开悬浮窗口问题
当开启一个悬浮窗口时，发现三星，华为都能够开启，无论系统为android4.4.4、android5.1.1还是android6.0，但是当用小米手机或者魅族的时候发现打不开了，检查manifest中的android.permission.SYSTEM_ALERT_WINDOW权限，我也加了啊，但是就是不好使，这个权限也不是android6.0中的敏感权限，所以android6.0动态申请权限是行不通的，这个问题找了好久，发现很难通过代码去打开悬浮窗，没辙之后想到，调到应用的设置界面去吧，引导用户手动的去打开。下面是三星和小米手机的运行效果，魅族的和小米的效果差不多就没贴动图了。
Build.MANUFACTURER这个可以获取手机的型号，可以分辨是小米还是魅族
完整的类如下：
悬浮窗:CallFloatBoxView.java
三星Galaxy (android6.0)手机上运行的效果：
小米5（android6.0）上运行效果：
首先添加权限
Build.MANUFACTURER这个可以获取手机的型号，可以分辨是小米还是魅族
public void open(View v){
//开启悬浮框前先请求权限
if("Xiaomi".equals(Build.MANUFACTURER)){//小米手机
requestPermission();
}else if("Meizu".equals(Build.MANUFACTURER)){//魅族手机
requestPermission();
}else {//其他手机
CallFloatBoxView.showFloatBox(this);
}
} /**
* 请求用户给予悬浮窗的权限
*/
public void requestPermission() {
if(isFloatWindowOpAllowed(this)){//已经开启
CallFloatBoxView.showFloatBox(this);
}else {
openSetting();
}
} /**
* 打开权限设置界面
*/
public void openSetting() {
try {
Intent localIntent = new Intent(
"miui.intent.action.APP_PERM_EDITOR");
localIntent.setClassName("com.miui.securitycenter",
"com.miui.permcenter.permissions.AppPermissionsEditorActivity");
localIntent.putExtra("extra_pkgname", getPackageName());
startActivityForResult(localIntent,11);
} catch (ActivityNotFoundException localActivityNotFoundException) {
Intent intent1 = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
Uri uri = Uri.fromParts("package", getPackageName(), null);
intent1.setData(uri);
startActivityForResult(intent1,11);
}
}完整的类如下：
package com.cool.hello.widget;
import android.annotation.TargetApi;
import android.app.AppOpsManager;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Binder;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import com.cool.hello.R;
import java.lang.reflect.Method;
public class WatchBoardViewActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_watch_board_view);
}
public void open(View v){
//开启悬浮框前先请求权限
if("Xiaomi".equals(Build.MANUFACTURER)){//小米手机
requestPermission();
}else if("Meizu".equals(Build.MANUFACTURER)){//魅族手机
requestPermission();
}else {//其他手机
CallFloatBoxView.showFloatBox(this);
}
}
public void close(View v){
CallFloatBoxView.hideFloatBox();
}
/**
* 请求用户给予悬浮窗的权限
*/
public void requestPermission() {
if(isFloatWindowOpAllowed(this)){//已经开启
CallFloatBoxView.showFloatBox(this);
}else {
openSetting();
}
}
/**
* 打开权限设置界面
*/
public void openSetting() {
try {
Intent localIntent = new Intent(
"miui.intent.action.APP_PERM_EDITOR");
localIntent.setClassName("com.miui.securitycenter",
"com.miui.permcenter.permissions.AppPermissionsEditorActivity");
localIntent.putExtra("extra_pkgname", getPackageName());
startActivityForResult(localIntent,11);
} catch (ActivityNotFoundException localActivityNotFoundException) {
Intent intent1 = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
Uri uri = Uri.fromParts("package", getPackageName(), null);
intent1.setData(uri);
startActivityForResult(intent1,11);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == 11){
if(isFloatWindowOpAllowed(this)){//已经开启
CallFloatBoxView.showFloatBox(this);
}else {
Toast.makeText(this,"开启悬浮窗失败",Toast.LENGTH_SHORT).show();
}
}
}
/**
* 判断悬浮窗权限
*
* @param context
* @return
*/
@TargetApi(Build.VERSION_CODES.KITKAT)
public static boolean isFloatWindowOpAllowed(Context context) {
final int version = Build.VERSION.SDK_INT;
if (version >= 19) {
return checkOp(context, 24); // AppOpsManager.OP_SYSTEM_ALERT_WINDOW
} else {
if ((context.getApplicationInfo().flags & 1 << 27) == 1 << 27) {
return true;
} else {
return false;
}
}
}
@TargetApi(Build.VERSION_CODES.KITKAT)
public static boolean checkOp(Context context, int op) {
final int version = Build.VERSION.SDK_INT;
if (version >= 19) {
AppOpsManager manager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
try {
Class spClazz = Class.forName(manager.getClass().getName());
Method method = manager.getClass().getDeclaredMethod("checkOp", int.class, int.class, String.class);
int property = (Integer) method.invoke(manager, op,
Binder.getCallingUid(), context.getPackageName());
Log.e("399"," property: " + property);
if (AppOpsManager.MODE_ALLOWED == property) {
return true;
} else {
return false;
}
} catch (Exception e) {
e.printStackTrace();
}
} else {
Log.e("399","Below API 19 cannot invoke!");
}
return false;
}
}
悬浮窗:CallFloatBoxView.java
package com.cool.hello.widget;
import android.content.Context;
import android.graphics.PixelFormat;
import android.os.Build;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.ImageView;
import com.cool.hello.R;
/**
* Created by cool on 2016/8/25.
*/
public class CallFloatBoxView {
private static Context mContext;
private static View mView;
private static Boolean isShown = false;
private static WindowManager wm;
public static void showFloatBox(Context context) {
if (isShown) {
return;
}
isShown = true;
mContext = context;
wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
final WindowManager.LayoutParams params = new WindowManager.LayoutParams();
int type;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
type = WindowManager.LayoutParams.TYPE_TOAST;
} else {
type = WindowManager.LayoutParams.TYPE_PHONE;
}
params.type = type;
params.flags = WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL;
params.format = PixelFormat.TRANSLUCENT;
params.width = ViewGroup.LayoutParams.WRAP_CONTENT;
params.height = ViewGroup.LayoutParams.WRAP_CONTENT;
params.gravity = Gravity.CENTER;
params.x = context.getResources().getDisplayMetrics().widthPixels;
params.y = 0;
ImageView imageView = new ImageView(mContext);
imageView.setImageResource(R.drawable.sese);
mView = imageView;
mView.setOnTouchListener(new View.OnTouchListener() {
float lastX, lastY;
int oldOffsetX, oldOffsetY;
int tag = 0;
@Override
public boolean onTouch(View v, MotionEvent event) {
final int action = event.getAction();
float x = event.getX();
float y = event.getY();
if (tag == 0) {
oldOffsetX = params.x;
oldOffsetY = params.y;
}
if (action == MotionEvent.ACTION_DOWN) {
lastX = x;
lastY = y;
} else if (action == MotionEvent.ACTION_MOVE) {
// 减小偏移量,防止过度抖动
params.x += (int) (x - lastX) / 3;
params.y += (int) (y - lastY) / 3;
tag = 1;
if (mView != null)
wm.updateViewLayout(mView, params);
} else if (action == MotionEvent.ACTION_UP) {
int newOffsetX = params.x;
int newOffsetY = params.y;
if (Math.abs(oldOffsetX - newOffsetX) <= 20 && Math.abs(oldOffsetY - newOffsetY) <= 20) {
} else {
tag = 0;
}
}
return true;
}
});
wm.addView(mView, params);
}
public static void hideFloatBox() {
if (isShown && null != mView) {
wm.removeView(mView);
isShown = false;
mView = null;
}
}
}