如何显示AlertDialog作为权限理由

Question

我有两个活动：main，以及runtimepermissionmanager，每当打开我的应用程序时，请首先启动。

当用户允许运行时许可时，该应用程序可以按预期工作，但是当他们拒绝它时，而不是arperdialog用权限理由显示出来的权限对话框，我只得到了一个无限Splash屏幕（因为我将其设置为在其父级活动的一生中始终放在屏幕上）。

我已经直接从RuntimePermissionsbasic与Android Studio捆绑在一起的示例直接复制了权限逻辑，只是用snackbar用arterdialog，所以我不' t看看为什么我的应用程序不起作用。

这是完整的RuntimePermissionManager参考活动。

谢谢。

public class RuntimePermissionManager extends AppCompatActivity implements ActivityCompat.OnRequestPermissionsResultCallback {
    private static final String TAG = "RuntimePermissionManager";
    private static final String PERMISSION = Manifest.permission.WRITE_EXTERNAL_STORAGE;
    private static final int PERMISSION_ID = 0;

    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        final SplashScreen splashScreen = SplashScreen.installSplashScreen(this);
        super.onCreate(savedInstanceState);
        // This ensures no hiccups while the splash screen is active.
        splashScreen.setKeepOnScreenCondition(() -> true);
        checkRuntimePermissionStatus();
        ThreadManager.unpackCriticalAssets(getApplicationContext());
    }

    @Override
    public void onRequestPermissionsResult(final int requestCode, @NonNull final String[] permissions, @NonNull final int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == PERMISSION_ID) {
            if (grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Log.i(TAG, "Runtime permission has been granted.");
                startMainActivity();
            } else {
                Log.e(TAG, "Runtime permission has been denied.");
            }
        }
    }

    private void checkRuntimePermissionStatus() {
        if (ActivityCompat.checkSelfPermission(this, PERMISSION) == PackageManager.PERMISSION_GRANTED) {
            Log.i(TAG, "Runtime permission has been granted.");
            startMainActivity();
        } else {
            requestRuntimePermission();
        }
    }

    private void requestRuntimePermission() {
        System.out.println(ActivityCompat.shouldShowRequestPermissionRationale(this, PERMISSION));
        if (ActivityCompat.shouldShowRequestPermissionRationale(this, PERMISSION)) {
            System.out.println("HERE1");
            showPermissionRationaleDialog(R.string.permission_rationale_title, R.string.permission_rationale_message);
        } else {
            Log.e(TAG, "Runtime permission has been denied.");
            ActivityCompat.requestPermissions(this, new String[]{PERMISSION}, PERMISSION_ID);
        }
    }

    private void showPermissionRationaleDialog(final int title, final int message) {
        System.out.println("HERE2");
        AlertDialog.Builder builder = new AlertDialog.Builder(RuntimePermissionManager.this);
        builder.setTitle(title).setMessage(message).setPositiveButton("OK", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                ActivityCompat.requestPermissions(RuntimePermissionManager.this, new String[]{PERMISSION}, PERMISSION_ID);
            }
        });
        builder.create().show();
    }

    private void startMainActivity() {
        Intent intent = new Intent(this, Main.class);
        startActivity(intent);
    }
}