android6.0 이후 수동으로 권한 추가 문제

/**
 *       
 * 
 * Created by wangchenlong on 16/1/26.
 */
public class PermissionsActivity extends AppCompatActivity {

    public static final int PERMISSIONS_GRANTED = 0; //     
    public static final int PERMISSIONS_DENIED = 1; //     

    private static final int PERMISSION_REQUEST_CODE = 0; //            
    private static final String EXTRA_PERMISSIONS =
            "me.chunyu.clwang.permission.extra_permission"; //     
    private static final String PACKAGE_URL_SCHEME = "package:"; //   

    private PermissionsChecker mChecker; //      
    private boolean isRequireCheck; //           ,           

    //              
    public static void startActivityForResult(Activity activity, int requestCode, String... permissions) {
        Intent intent = new Intent(activity, PermissionsActivity.class);
        intent.putExtra(EXTRA_PERMISSIONS, permissions);
        ActivityCompat.startActivityForResult(activity, intent, requestCode, null);
    }

    @Override protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getIntent() == null || !getIntent().hasExtra(EXTRA_PERMISSIONS)) {
            throw new RuntimeException("PermissionsActivity      startActivityForResult    !");
        }
        setContentView(R.layout.activity_permissions);

        mChecker = new PermissionsChecker(this);
        isRequireCheck = true;
    }

    @Override protected void onResume() {
        super.onResume();
        if (isRequireCheck) {
            String[] permissions = getPermissions();
            if (mChecker.lacksPermissions(permissions)) {
                requestPermissions(permissions); //     
            } else {
                allPermissionsGranted(); //         
            }
        } else {
            isRequireCheck = true;
        }
    }

    //          
    private String[] getPermissions() {
        return getIntent().getStringArrayExtra(EXTRA_PERMISSIONS);
    }

    //          
    private void requestPermissions(String... permissions) {
        ActivityCompat.requestPermissions(this, permissions, PERMISSION_REQUEST_CODE);
    }

    //         
    private void allPermissionsGranted() {
        setResult(PERMISSIONS_GRANTED);
        finish();
    }

    /**
     *       ,
     *       ,     .
     *       ,    Dialog.
     *
     * @param requestCode     
     * @param permissions    
     * @param grantResults   
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == PERMISSION_REQUEST_CODE && hasAllPermissionsGranted(grantResults)) {
            isRequireCheck = true;
            allPermissionsGranted();
        } else {
            isRequireCheck = false;
            showMissingPermissionDialog();
        }
    }

    //        
    private boolean hasAllPermissionsGranted(@NonNull int[] grantResults) {
        for (int grantResult : grantResults) {
            if (grantResult == PackageManager.PERMISSION_DENIED) {
                return false;
            }
        }
        return true;
    }

    //         
    private void showMissingPermissionDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(PermissionsActivity.this);
        builder.setTitle(R.string.help);
        builder.setMessage(R.string.string_help_text);

        //   ,     
        builder.setNegativeButton(R.string.quit, new DialogInterface.OnClickListener() {
            @Override public void onClick(DialogInterface dialog, int which) {
                setResult(PERMISSIONS_DENIED);
                finish();
            }
        });

        builder.setPositiveButton(R.string.settings, new DialogInterface.OnClickListener() {
            @Override public void onClick(DialogInterface dialog, int which) {
                startAppSettings();
            }
        });

        builder.setCancelable(false);

        builder.show();
    }

    //        
    private void startAppSettings() {
        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
        intent.setData(Uri.parse(PACKAGE_URL_SCHEME + getPackageName()));
        startActivity(intent);
    }
}

/**
 *         
 * 
 * Created by wangchenlong on 16/1/26.
 */
public class PermissionsChecker {
    private final Context mContext;

    public PermissionsChecker(Context context) {
        mContext = context.getApplicationContext();
    }

    //       
    public boolean lacksPermissions(String... permissions) {
        for (String permission : permissions) {
            if (lacksPermission(permission)) {
                return true;
            }
        }
        return false;
    }

    //         
    private boolean lacksPermission(String permission) {
        return ContextCompat.checkSelfPermission(mContext, permission) ==
                PackageManager.PERMISSION_DENIED;
    }
}

public class ManualCopyActivity extends AppCompatActivity implements View.OnClickListener {
   
    private PermissionsChecker mPermissionCheck;
    private static final int REQUEST_CODE = 0; //    
    static final String[] PERMISSIONS = new String[]{
            Manifest.permission.READ_CONTACTS,      //            
            Manifest.permission.WRITE_EXTERNAL_STORAGE,
            Manifest.permission.READ_EXTERNAL_STORAGE

    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_manual_copy);
        mPermissionCheck = new PermissionsChecker(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.img_titlebar_left:
                ManualCopyActivity.this.finish();
                break;
            case R.id.tv_manualcopy_bottom:
                switch (isSelected) {
                    //     
                    case 1:
                        if (mPermissionCheck.lacksPermissions(PERMISSIONS)) {
                            startPermissionsActivity();
                        } else {
                            Intent intentCommunication = new Intent(ManualCopyActivity.this, PhoneCommunicationAvtivity.class);
                            startActivityForResult(intentCommunication, REQUEST_COMMUNICATION);
                        }
                        break;
                    default:
                        break;
                }
        }
    }

 /*
    *     activity
    * */
    private void startPermissionsActivity() {
        PermissionsActivity.startActivityForResult(this, REQUEST_CODE, PERMISSIONS);
    }

}