system permissions for android 6.0

从 Android 6.0（API 级别 23）开始，用户开始在应用运行时向其授予权限，而不是在应用安装时授予。

private final static int PUBLISHER_REQUEST_CODE = 1;

import android.support.v4.content.ContextCompat;
import android.Manifest;
import andorid.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
        != PackageManager.PERMISSION_GRANTED ||
        ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO)
                != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this, new String[] {
                    Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO},
            PUBLISHER_REQUEST_CODE);
}
else {
 /*your codes*/
}

 @Override
    public void onRequestPermissionsResult(int requestCode,
                                           @NonNull String[] permissions,
                                           @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == PUBLISHER_REQUEST_CODE) {
            if (grantResults[0] != PackageManager.PERMISSION_GRANTED ||
                    grantResults[1] != PackageManager.PERMISSION_GRANTED)                              {
                // Permission Denied
                Toast.makeText(this, "获取权限失败", Toast.LENGTH_SHORT).show();
                return;
            }
/* your codes*/
            
        }
    }