Android6.0动态权限申请

骑猪看日落 2022-05-11 04:28 261阅读 0赞

在Android6.0之前只需在AndroidManifest.xml文件写明权限即可。但是在Android6.0之后也就是SDK>=23的时候，一些隐私权限需要动态申请，而且在用户同意授权之后App才能拥有该权限。

如下9组权限需要动态申请。而且一组权限只要一个授权授权同意，全组都可用。

group:android.permission-group.CONTACTS  
permission:android.permission.WRITE\_CONTACTS  
permission:android.permission.GET\_ACCOUNTS  
permission:android.permission.READ\_CONTACTS

group:android.permission-group.PHONE  
permission:android.permission.READ\_CALL\_LOG  
permission:android.permission.READ\_PHONE\_STATE  
permission:android.permission.CALL\_PHONE  
permission:android.permission.WRITE\_CALL\_LOG  
permission:android.permission.USE\_SIP  
permission:android.permission.PROCESS\_OUTGOING\_CALLS  
permission:com.android.voicemail.permission.ADD\_VOICEMAIL

group:android.permission-group.CALENDAR  
permission:android.permission.READ\_CALENDAR  
permission:android.permission.WRITE\_CALENDAR

group:android.permission-group.CAMERA  
permission:android.permission.CAMERA

group:android.permission-group.SENSORS  
permission:android.permission.BODY\_SENSORS

group:android.permission-group.LOCATION  
permission:android.permission.ACCESS\_FINE\_LOCATION  
permission:android.permission.ACCESS\_COARSE\_LOCATION

group:android.permission-group.STORAGE  
permission:android.permission.READ\_EXTERNAL\_STORAGE  
permission:android.permission.WRITE\_EXTERNAL\_STORAGE

group:android.permission-group.MICROPHONE  
permission:android.permission.RECORD\_AUDIO

group:android.permission-group.SMS  
permission:android.permission.READ\_SMS  
permission:android.permission.RECEIVE\_WAP\_PUSH  
permission:android.permission.RECEIVE\_MMS  
permission:android.permission.RECEIVE\_SMS  
permission:android.permission.SEND\_SMS  
permission:android.permission.READ\_CELL\_BROADCASTS

动态权限总共有三个方法：

ContextCompat.checkSelfPermission() 检查权限是否已经授权

ActivityCompat.requestPermissions()动态申请权限，并弹出对话框。

onRequestPermissionsResult()在activity里面重写该方法该方法是权限申请之后的回调方法。

当然。动态权限申请也要在AndroidManifest.xml里面写明。附上代码

public class MainActivity extends AppCompatActivity {
     
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
     
            applypermission();
        }
     
        public void applypermission(){
            if(Build.VERSION.SDK_INT>=23){
                //检查是否已经给了权限
                int checkpermission= ContextCompat.checkSelfPermission(getApplicationContext(),
                        Manifest.permission.ACCESS_FINE_LOCATION);
                if(checkpermission!=PackageManager.PERMISSION_GRANTED){//没有给权限
                    Log.e("permission","动态申请");
                    //参数分别是当前活动，权限字符串数组，requestcode
                    ActivityCompat.requestPermissions(MainActivity.this,new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);
                }
            }
        }
     
        @Override
        public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
            //grantResults数组与权限字符串数组对应，里面存放权限申请结果
            if(grantResults[0]== PackageManager.PERMISSION_GRANTED){
                Toast.makeText(MainActivity.this,"已授权",Toast.LENGTH_SHORT).show();
            }else{
                Toast.makeText(MainActivity.this,"拒绝授权",Toast.LENGTH_SHORT).show();
            }
        }
    }

如果有多项权限需要动态申请。那么只需要把权限写入permission数组即可。下面也给出修改后的代码

public class MainActivity extends AppCompatActivity {
     
        String[] allpermissions=new String[]{Manifest.permission.ACCESS_FINE_LOCATION,
        Manifest.permission.CALL_PHONE};
     
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
     
            applypermission();
        }
     
        public void applypermission(){
            if(Build.VERSION.SDK_INT>=23){
                boolean needapply=false;
                for(int i=0;i<allpermissions.length;i++){
                    int chechpermission= ContextCompat.checkSelfPermission(getApplicationContext(),
                            allpermissions[i]);
                    if(chechpermission!=PackageManager.PERMISSION_GRANTED){
                        needapply=true;
                    }
                }
                if(needapply){
                    ActivityCompat.requestPermissions(MainActivity.this,allpermissions,1);
                }
            }
        }
     
        @Override
        public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
            for(int i=0;i<grantResults.length;i++){
                if(grantResults[i]==PackageManager.PERMISSION_GRANTED){
                    Toast.makeText(MainActivity.this, permissions[i]+"已授权",Toast.LENGTH_SHORT).show();
                }
                else {
                    Toast.makeText(MainActivity.this,permissions[i]+"拒绝授权",Toast.LENGTH_SHORT).show();
                }
            }
        }
    }