我想为Android TV的应用程序,所以我用Android Studio中默认的Android电视活动作为我的项目模板,我想添加一个按钮VideoDetailsFragment,只有在包管理器检测到辅助活动处于活动状态后才会出现此按钮。无法从VideoDetailsFragment访问getPackageManager GetActivityInfo Android中的Leanback应用
如果程序包管理器检测我的次要活动活跃,就应该表现出一个按钮来禁用它,如果活动被禁用它应该显示一个按钮来启用它,但是......包管理器不能得到该活动的名称,它实际上并不能得到任何包或活动的名称,它总是显示NameNotFoundException
我的两个活动都android:name="android.intent.action.MAIN"
的清单,因为我想添加一个启动Intent两个从发射,但二级活动有标签android:enabled="false"
因为我想放在VideoDetailsFragment按钮应该启用和禁用该活动。
这里是我的清单:
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-feature
android:name="android.hardware.touchscreen"
android:required="false" />
<uses-feature
android:name="android.software.leanback"
android:required="true" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/Theme.Leanback">
<activity
android:name=".MainActivity"
android:banner="@mipmap/banner"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:logo="@mipmap/banner"
android:screenOrientation="landscape">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LEANBACK_LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".DetailsActivity" />
<activity android:name=".PlaybackOverlayActivity" />
<activity android:name=".BrowseErrorActivity" />
<activity android:name=".SecondaryActivity"
android:icon="@mipmap/ic_launcher"
android:banner="@mipmap/banner"
android:label="@string/app_name"
android:screenOrientation="landscape"
android:enabled="false">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LEANBACK_LAUNCHER" />
</intent-filter>
</activity>
</application>
这里是VideoDetailsFragment代码:
private void setupDetailsOverviewRow() {
Log.d(TAG, "doInBackground: " + mSelectedMovie.toString());
final DetailsOverviewRow row = new DetailsOverviewRow(mSelectedMovie);
row.setImageDrawable(getResources().getDrawable(R.drawable.default_background));
int width = Utils.convertDpToPixel(getActivity()
.getApplicationContext(), DETAIL_THUMB_WIDTH);
int height = Utils.convertDpToPixel(getActivity()
.getApplicationContext(), DETAIL_THUMB_HEIGHT);
Glide.with(getActivity())
.load(mSelectedMovie.getCardImageUrl())
.centerCrop()
.error(R.drawable.default_background)
.into(new SimpleTarget<GlideDrawable>(width, height) {
@Override
public void onResourceReady(GlideDrawable resource,
GlideAnimation<? super GlideDrawable>
glideAnimation) {
Log.d(TAG, "details overview card image url ready: " + resource);
row.setImageDrawable(resource);
mAdapter.notifyArrayItemRangeChanged(0, mAdapter.size());
}
});
/******************************/
/*HERE IS THE PROBLEMATIC CODE*/
/******************************/
PackageManager pm = getActivity().getPackageManager();
ComponentName cn = new ComponentName(getActivity(), "com.valecast.myapp.SecondaryActivity");
ActivityInfo info = pm.getActivityInfo(cn, 0); //<===IT NEVER LOCATE THIS
if (info != null && info.enabled) {
// Component is enabled
row.addAction(new Action(ACTION_BUY, "it works"));
} else {
// Component is disabled
row.addAction(new Action(ACTION_BUY, "it doesn't"));
}
/******************************/
row.addAction(new Action(ACTION_WATCH_TRAILER, getResources().getString(
R.string.watch_trailer_1), getResources().getString(R.string.watch_trailer_2)));
row.addAction(new Action(ACTION_RENT, getResources().getString(R.string.rent_1),
getResources().getString(R.string.rent_2)));
row.addAction(new Action(ACTION_BUY, getResources().getString(R.string.buy_1),
getResources().getString(R.string.buy_2)));
mAdapter.add(row);
}
这里是错误秀截图android s tudio:
下面是该建议的答案之一另一屏幕,但它不工作也不:
我那裹成一个尝试捕捉,但是当我运行我的应用程序,它总是在Android监视器中投掷NameNotFoundException
。
我做错了什么?
谢谢你,但它似乎并不工作方式都不是,我更新了我的问题与第二个屏幕截图。 –
你需要用try catch来包装它虽然 – petrumo
我更新了第二个屏幕截图,同样的错误,但是这次在android monitor –