MainActivity.java 文件源码

@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
@OnClick(R.id.folder_chooser)
public void showFolderChooser() {
  chooserDialog = R.id.folder_chooser;
  if (ActivityCompat.checkSelfPermission(
          MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
      != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(
        MainActivity.this,
        new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE},
        STORAGE_PERMISSION_RC);
    return;
  }
  new FolderChooserDialog.Builder(MainActivity.this)
      .chooseButton(R.string.md_choose_label)
      .allowNewFolder(true, 0)
      .show();
}