72

如何查找特定的包或应用程序，例如：com.android.abc，是否存在于我的 Android 设备上？

4

9 回答 9

157

使用包名称调用以下任何方法。

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;
 }
于 2011-07-20T08:18:42.473 回答
13

不使用 try-catch 块或遍历一堆包：

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;
}
于 2015-06-08T11:40:52.290 回答
9

科特林

fun isPackageExist(context: Context, target: String): Boolean {
     return context.packageManager.getInstalledApplications(0).find { info -> info.packageName == target } != null
}
于 2019-03-07T14:07:14.740 回答
4 
Intent intent = new Intent("com.google.zxing.client.android.SCAN");
PackageManager packageManager = getPackageManager();
List<ResolveInfo> activities = packageManager.queryIntentActivities(intent, 0);
boolean isIntentSafe = activities.size() > 0;
于 2013-12-07T23:57:56.400 回答
4

我们可以这样检查：

 if(getPackageManager().hasSystemFeature("android.software.webview") == true && isPackageExisted("com.google.android.webview")) {
            if (Constant.isNetworkConnected(Activity.this)) {
                 //Your Intent 
            } else {
                Toast.makeText(getApplicationContext(), resources.getString(R.string.internet_error), Toast.LENGTH_SHORT).show();
            }
        }   else
            {
                Constant.showDialog(Activity.this,"Please install the webview");
            }
    }

制作包装检查方法！这归功于“Kavi” https://stackoverflow.com/a/30708227/6209105

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;

}

于 2019-11-29T10:30:00.477 回答
3

您应该使用PackageManager调用的函数getInstalledPackages()来获取所有已安装软件包的列表并搜索您感兴趣的软件包。请注意，软件包名称位于PackageInfo.packageName字段中。

于 2011-07-20T08:15:31.070 回答
2

如果你只想使用 adb：

adb shell "pm list packages"|cut -f 2 -d ":"

它将列出所有已安装的软件包。

于 2016-05-23T11:02:15.343 回答
2

您可以使用 pm.getPackageUid() 而不是遍历 pm.getInstalledApplications()

 boolean isPackageInstalled;
 PackageManager pm = getPackageManager();   
 int flags = 0; 
        try 
        {   
              pm.getPackageUid(packageName,flags);               
              isPackageInstalled = true;    
        }   
        catch (final PackageManager.NameNotFoundException nnfe) 
        {   
            isPackageInstalled = false; 
        }                   
 return isPackageInstalled;
于 2018-10-05T16:20:31.287 回答
1

由于某些设备报告说“getInstalledPackages”可能导致 TransactionTooLargeException（查看此处、此处和此处），我认为您也应该像我在下面所做的那样进行后备。

这个问题应该在 Android 5.1 上得到修复（阅读这里），但有些人仍然报告了这个问题。

public static List<String> getInstalledPackages(final Context context) {
    List<String> result = new ArrayList<>();
    final PackageManager pm = context.getPackageManager();
    try {
        List<PackageInfo> apps = pm.getInstalledPackages(0);
        for (PackageInfo packageInfo : apps)
            result.add(packageInfo.packageName);
        return result;
    } catch (Exception ignored) {
        //we don't care why it didn't succeed. We'll do it using an alternative way instead
    }
    // use fallback:
    BufferedReader bufferedReader = null;
    try {
        Process process = Runtime.getRuntime().exec("pm list packages");
        bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String line;
        while ((line = bufferedReader.readLine()) != null) {
            final String packageName = line.substring(line.indexOf(':') + 1);
            result.add(packageName);
        }
        closeQuietly(bufferedReader);
        process.waitFor();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        closeQuietly(bufferedReader);
    }
    return result;
}

public static void closeQuietly(final Closeable closeable) {
    if (closeable == null)
        return;
    try {
        closeable.close();
    } catch (final IOException e) {
    }
}
于 2016-03-21T07:52:41.930 回答