如何在Android中獲取已安裝的軟件包？

Question

我可以獲取我的代碼來獲取所有已安裝的軟件包並將它們顯示在烤面包中。 問題是，我希望我的代碼僅顯示其中包含字符串的程序包名稱。 我怎么做？

ActivityManager actvityManager = (ActivityManager)
    getApplicationContext().getSystemService( getApplicationContext().ACTIVITY_SERVICE );
List<RunningAppProcessInfo> procInfos = actvityManager.getRunningAppProcesses();

for(int pnum = 0; pnum < procInfos.size(); pnum++)
{
 if((procInfos.get(pnum)).processName.contains("android")||    (procInfos.get(pnum)).processName.contains("system")||(procInfos.get(pnum)).processName.contains("huawei")||(procInfos.get(pnum)).processName.contains("adil")) 
 {
      //Toast.makeText(getApplicationContext(), "system apps", Toast.LENGTH_SHORT).show();
 }
else
{
    actvityManager.killBackgroundProcesses(procInfos.get(pnum).processName);
    Toast.makeText(getApplicationContext(), "killed "+procInfos.get(pnum).processName, Toast.LENGTH_SHORT).show();

}
 }

Answer 1

這是將為您提供Android上所有已安裝活動/應用程序的代碼：

Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
List<ResolveInfo> pkgAppsList = context.getPackageManager().queryIntentActivities( mainIntent, 0);

獲取已安裝的非系統應用程序的列表：

public static void installedApps()
{
List<PackageInfo> packList = getPackageManager().getInstalledPackages(0);
for (int i=0; i < packList.size(); i++)
{
    PackageInfo packInfo = packList.get(i);
    if (  (packInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) == 0)
    {
        String appName = packInfo.applicationInfo.loadLabel(getPackageManager()).toString();
        Log.e("App № " + Integer.toString(i), appName);
    }
} }

或者，您可以嘗試一個結構良好的示例：

class PInfo {
private String appname = "";
private String pname = "";
private String versionName = "";
private int versionCode = 0;
private Drawable icon;
private void prettyPrint() {
    Log.v(appname + "\t" + pname + "\t" + versionName + "\t" + versionCode);
} }

private ArrayList<PInfo> getPackages() {
ArrayList<PInfo> apps = getInstalledApps(false); 
final int max = apps.size();
for (int i=0; i<max; i++) {
    apps.get(i).prettyPrint();
}
return apps; }

private ArrayList<PInfo> getInstalledApps(boolean getSysPackages) {
ArrayList<PInfo> res = new ArrayList<PInfo>();        
List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);
for(int i=0;i<packs.size();i++) {
    PackageInfo p = packs.get(i);
    if ((!getSysPackages) && (p.versionName == null)) {
        continue ;
    }
    PInfo newInfo = new PInfo();
    newInfo.appname = p.applicationInfo.loadLabel(getPackageManager()).toString();
    newInfo.pname = p.packageName;
    newInfo.versionName = p.versionName;
    newInfo.versionCode = p.versionCode;
    newInfo.icon = p.applicationInfo.loadIcon(getPackageManager());
    res.add(newInfo);
    }
return res; }