如何查找com.android.abc我的Android設(shè)備上是否存在特定的程序包或應(yīng)用程序，例如：？
3 回答
慕容708150
TA貢獻(xiàn)1831條經(jīng)驗(yàn) 獲得超4個(gè)贊
使用程序包名稱調(diào)用以下任何方法。
import android.content.pm.PackageManager;
// ...
public boolean isPackageExisted(String targetPackage){
List<ApplicationInfo> packages;
PackageManager pm;
pm = getPackageManager();
packages = pm.getInstalledApplications(0);
for (ApplicationInfo packageInfo : packages) {
if(packageInfo.packageName.equals(targetPackage))
return true;
}
return false;
}
import android.content.pm.PackageManager;
public boolean isPackageExisted(String targetPackage){
PackageManager pm=getPackageManager();
try {
PackageInfo info=pm.getPackageInfo(targetPackage,PackageManager.GET_META_DATA);
} catch (PackageManager.NameNotFoundException e) {
return false;
}
return true;
}
PIPIONE
TA貢獻(xiàn)1829條經(jīng)驗(yàn) 獲得超9個(gè)贊
無(wú)需使用try-catch塊或遍歷一堆程序包：
public static boolean isPackageInstalled(Context context, String packageName) {
final PackageManager packageManager = context.getPackageManager();
Intent intent = packageManager.getLaunchIntentForPackage(packageName);
if (intent == null) {
return false;
}
List<ResolveInfo> list = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
return list.size() > 0;
}
- 3 回答
- 0 關(guān)注
- 576 瀏覽
添加回答
舉報(bào)
0/150
提交
取消