[英]How to get name of installed or removed application?
我已經編寫了一個廣播接收器來檢測安裝和刪除應用程序。 但是我也想獲得已安裝或已刪除應用程序的名稱。 我怎樣才能做到這一點?
這是我的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;
}
}
}
在清單中:
<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>
結合在android文檔中找到的信息和堆棧溢出的答案 ,我想到了以下內容。 您使用的Intent可能還有EXTRA_UID個,其中包含修改后的應用程序的uid。 使用uid可以獲取應用程序名稱。 但是,您只能在ACTION_PACKAGE_ADDED意圖上執行此操作,因為在ACTION_PACKAGE_REMOVED應用中,該應用已被刪除,您無法獲取其名稱(仍然可以獲取uid)。
檢查此樣本:
int uid = intent.getIntegerExtra(Intent.EXTRA_UID);
String appName = context.getPackageManager().getNameForUid(uid);
因此,在您的情況下,它將是:
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;
}
}
}
通過以下代碼,我已經看到從Google Play安裝Google Earth后用logcat編寫的代碼:
已安裝uid 10404 appname com.google.earth
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