我编写了一个广播接收器来检测安装和删除应用程序。 但我也希望获得已安装或删除的应用程序的名称。 我怎么能这样做?
这是我的BroadcastReceiver:
public class PackageReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
switch(intent.getAction())
{
case Intent.ACTION_PACKAGE_ADDED:
String replaced = "";
if(intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))
{
replaced = "replaced";
}
Log.e("application", "installed " + replaced);
break;
case Intent.ACTION_PACKAGE_REMOVED:
if(!intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))
{
Log.e("application", "removed");
}
break;
}
}
}
在清单中:
<receiver
android:name=".receivers.PackageReceiver"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.PACKAGE_ADDED" />
<action android:name="android.intent.action.PACKAGE_REMOVED" />
<data android:scheme="package" />
</intent-filter>
</receiver>
答案 0 :(得分:0)
将android documentation和此answer中的信息与堆栈溢出相结合,我想出了以下内容。您正在使用的意图可能包含额外的EXTRA_UID,其中包含已修改应用的uid。使用uid,您可以获得应用名称。但是你只能在ACTION_PACKAGE_ADDED意图上执行此操作,因为在ACTION_PACKAGE_REMOVED应用程序已经删除并且您无法获取其名称(您仍然可以获得uid)。
检查此样本:
int uid = intent.getIntegerExtra(Intent.EXTRA_UID);
String appName = context.getPackageManager().getNameForUid(uid);
所以在你的情况下,它将是:
public class PackageReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
switch(intent.getAction())
{
case Intent.ACTION_PACKAGE_ADDED:
String replaced = "";
String appName = "";
int uid = -1;
if(intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))
{
replaced = "replaced";
}
uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
if(uid != -1){
appName = context.getPackageManager().getNameForUid(uid);
}
Log.e("application", "installed " + replaced + " uid " + uid + " appname " + appName);
break;
case Intent.ACTION_PACKAGE_REMOVED:
if(!intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))
{
Log.e("application", "removed");
}
break;
}
}
}
使用此代码,我从Google Play安装Google地球后看到这是用logcat编写的:
安装了uid 10404 appname com.google.earth