android - 从android中的 Intent 选择器选择选项(相机或图库)后请求权限

Question

我创建了一个包含图库、照片和相机应用程序的 Intent 选择器。现在对于在 Android 6.0 或更高版本上运行的设备，我想在从选择器中选择应用程序后询问运行时权限，例如如果用户选择图库选项，我将仅询问存储权限，如果用户选择相机选项，我将询问相机和存储如果之前没有给出这两个权限。

有人可以帮我这样做吗？

这是我的代码

public void openImageIntent() {
    File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
    String fname = "ABCD_" + timeStamp;
    final File sdImageMainDirectory = new File(storageDir, fname);
    fileUri = Uri.fromFile(sdImageMainDirectory);

    // Camera.
    final List<Intent> cameraIntents = new ArrayList<Intent>();
    final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
    final PackageManager packageManager = getPackageManager();
    final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0);
    for (ResolveInfo res : listCam) {
        final String packageName = res.activityInfo.packageName;
        final Intent intent = new Intent(captureIntent);
        intent.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
        intent.setPackage(packageName);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
        cameraIntents.add(intent);
    }

    //Gallery.
    Intent galleryIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

    //Create the Chooser
    final Intent chooserIntent = Intent.createChooser(galleryIntent, "Select Source");

    chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, cameraIntents.toArray(new Parcelable[cameraIntents.size()]));


    startActivityForResult(chooserIntent, 65530);
}

Answer 1

感谢大家的支持。

我自己解决了。

我在上面的方法中附加了下面的代码

Intent receiver = new Intent(MainActivity.this, IntentOptionReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, receiver, PendingIntent.FLAG_UPDATE_CURRENT);
        //Create the Chooser
        final Intent chooserIntent;
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP_MR1) {
            chooserIntent = Intent.createChooser(galleryIntent, "Select Source", pendingIntent.getIntentSender());
        } else {
            chooserIntent = Intent.createChooser(galleryIntent, "Select Source");
        }

这是我的广播接收器(IntentOptionReceiver)，用于通知选择了哪个 Intent 选择器选项

public class IntentOptionReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        for (String key : intent.getExtras().keySet()) {
            Log.e("intentOptionReceiver", "Intent option clicked info" + intent.getExtras().get(key));
        }
    }
}

不要忘记在 list 中输入您的广播接收器。