QT 安卓动态获取权限

一：在AndroidManifest.xml文件中赋予相关权限

二：

package ckdz.Appproject;

import android.Manifest;

import android.app.Activity;

import android.content.Context;

import android.content.pm.PackageManager;

import android.support.v4.app.ActivityCompat;

import android.support.v4.content.ContextCompat;

import java.util.ArrayList;

import java.util.List;

import android.util.Log;

/**

 * Created by long

 */

public class PermissionManager {

    public final static int MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE = 1;

    public final static int MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE = 2;

    public final static int MY_PERMISSIONS_REQUEST_CAMERA = 3;

    public final static int MY_PERMISSIONS_RECORD_AUDIO = 4;

    public final static int MY_PERMISSIONS_SYSTEM_ALERT_WINDOW = 5;

    //log TAG

    private String MYTAG = "XHLIVE";//MainActivity.xhlogtag;

    //data

    private static Context mContext;

    private boolean mWritePermission = false;   //写权限

    private boolean mReadPermission = false;    //读权限

    private boolean mCameraPermission = false;  //摄像头权限

    private boolean mRecordAudioPermission = false;       //麦克风权限

    private boolean mRecordSystemWindow = false;       //悬浮窗

    String[] permissions = new String[]{

            Manifest.permission.WRITE_EXTERNAL_STORAGE,

            Manifest.permission.READ_EXTERNAL_STORAGE,

            Manifest.permission.CAMERA,

            Manifest.permission.RECORD_AUDIO,

            Manifest.permission.SYSTEM_ALERT_WINDOW

    };

    List<String> mPermissionList = new ArrayList<String>();

    //检查所有权限（摄像头相关）

    public void checkAllPermission() {

        mPermissionList.clear();

        //Log.d("GetPermission" , "the result mPermissionList is NUll "+mPermissionList.length );

        for (int i = 0; i < permissions.length; i++) {

            if (ContextCompat.checkSelfPermission(mContext, permissions[i]) != PackageManager.PERMISSION_GRANTED) {

                mPermissionList.add(permissions[i]);

            }

        }

    }

    //获取所有权限（摄像头相关）

    public void getAllPermission() {

        if (mPermissionList.isEmpty()) {

            //未授予的权限为空，表示都授予了

        } else {

            //请求权限方法

            String[] permissions = mPermissionList.toArray(new String[mPermissionList.size()]);//将List转为数组

            //Log.d("GetPermission" , "the result requestPermissions "+permissions.size());

            ActivityCompat.requestPermissions((Activity) mContext, permissions, 1);

        }

    }

    private static class SingletonHolder{

        public static PermissionManager instance = new PermissionManager();

    }

    private PermissionManager(){}

    public static PermissionManager getInstance(Context context){

        mContext = context;

        return SingletonHolder.instance;

    }

    //检查: 写 权限

    public  boolean checkWritePermission() {

        int permission = ActivityCompat.checkSelfPermission(mContext,

                Manifest.permission.WRITE_EXTERNAL_STORAGE);

        if (permission != PackageManager.PERMISSION_GRANTED) {

            Log.e(MYTAG, "No, we do not have WRITE permission");

            mWritePermission = false;

        } else{

            Log.e(MYTAG, "Yes, we have WRITE permission");

            mWritePermission = true;

        }

        return mWritePermission;

    }

    //检查: 读 权限

    public  boolean checkReadPermission() {

        int permission = ActivityCompat.checkSelfPermission(mContext,

                Manifest.permission.READ_EXTERNAL_STORAGE);

        if (permission != PackageManager.PERMISSION_GRANTED) {

            Log.e(MYTAG, "No, we do not have READ permission");

            mReadPermission = false;

        } else{

            Log.e(MYTAG, "Yes, we have READ permission");

            mReadPermission = true;

        }

        return mReadPermission;

    }

    //检查: 摄像头 权限

    public boolean checkCameraPermission() {

        int permission = ActivityCompat.checkSelfPermission(mContext,

                Manifest.permission.CAMERA);

        if (permission != PackageManager.PERMISSION_GRANTED) {

            Log.e(MYTAG, "No, we do not have CAMERA permission");

            mCameraPermission = false;

        } else{

            Log.e(MYTAG, "Yes, we have CAMERA permission");

            mCameraPermission = true;

        }

        return mCameraPermission;

    }

  //检查 悬浮窗权限

    public  boolean checkWindowPermission() {

        int permission = ActivityCompat.checkSelfPermission(mContext,

            Manifest.permission.WRITE_EXTERNAL_STORAGE);

        return mWritePermission;

    }

    //获取 存储 权限

    public void getWritePermission() {

        // Should we show an explanation?

        if (ActivityCompat.shouldShowRequestPermissionRationale((Activity) mContext,

                Manifest.permission.WRITE_EXTERNAL_STORAGE)) {

            // Show an expanation to the user *asynchronously* -- don't block

            // this thread waiting for the user's response! After the user

            // sees the explanation, try again to request the permission.

        } else {

            // No explanation needed, we can request the permission.

            ActivityCompat.requestPermissions((Activity) mContext,

                    new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},

                    MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);

            // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an

            // app-defined int constant. The callback method gets the

            // result of the request.

        }

    }

    //获取 读 权限

    public void getReadPermission() {

        // Should we show an explanation?

        if (ActivityCompat.shouldShowRequestPermissionRationale((Activity) mContext,

                Manifest.permission.READ_EXTERNAL_STORAGE)) {

            // Show an expanation to the user *asynchronously* -- don't block

            // this thread waiting for the user's response! After the user

            // sees the explanation, try again to request the permission.

        } else {

            // No explanation needed, we can request the permission.

            ActivityCompat.requestPermissions((Activity) mContext,

                    new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},

                    MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);

            // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an

            // app-defined int constant. The callback method gets the

            // result of the request.

        }

    }

    //获取 摄像头 权限

    public void getCameraPermission() {

        // Should we show an explanation?

        if (ActivityCompat.shouldShowRequestPermissionRationale((Activity) mContext,

                Manifest.permission.CAMERA)) {

            // Show an expanation to the user *asynchronously* -- don't block

            // this thread waiting for the user's response! After the user

            // sees the explanation, try again to request the permission.

        } else {

            // No explanation needed, we can request the permission.

            ActivityCompat.requestPermissions((Activity) mContext,

                    new String[]{Manifest.permission.CAMERA},

                    MY_PERMISSIONS_REQUEST_CAMERA);

            // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an

            // app-defined int constant. The callback method gets the

            // result of the request.

        }

    }

    //获取悬浮窗 权限

    public void getWindowPermission() {

    // Should we show an explanation?

        if (ActivityCompat.shouldShowRequestPermissionRationale((Activity) mContext,

                Manifest.permission.SYSTEM_ALERT_WINDOW)) {

        } else {

            ActivityCompat.requestPermissions((Activity) mContext,

                new String[]{Manifest.permission.SYSTEM_ALERT_WINDOW},

                MY_PERMISSIONS_SYSTEM_ALERT_WINDOW);

        }

    }

    public void setWritPermissionStatus(boolean status) {

        mWritePermission = status;

    }

    public void setReadPermissionStatus(boolean status) {

        mReadPermission = status;

    }

    public void setCameraPermissionStatus(boolean status) {

        mCameraPermission = status;

    }

    public boolean isWritePermissionOK() {

        return mWritePermission;

    }

    public boolean isReadPermissionOK() {

        return mReadPermission;

    }

    public boolean isCameraPermissionOK() {

        return mCameraPermission;

    }

}