如何在Android手机上安装所有应用程序

Question

这是我目前的代码,但我仍然无法获得手机上所有应用的列表.有谁看到我做错了什么？

public class GetAppList extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        try {
            List<PackageInfo> appListInfo1 = this.getPackageManager()
            .getInstalledPackages(0);
            JSONArray ja = new JSONArray();
            try {
                HttpClient httpclient = new DefaultHttpClient();
                Object sendDataUrl = null;
                HttpPost request = new HttpPost(sendDataUrl.toString());
                List<NameValuePair> params = new ArrayList<NameValuePair>();
                ContextWrapper context = null;
                PackageManager pm = context.getPackageManager();
                List<PackageInfo> appListInfo = pm.getInstalledPackages(0);
                for (PackageInfo p : appListInfo) {
                    if (p.applicationInfo.uid > 10000) {
                        JSONObject jo = new JSONObject();
                        jo.put("label", p.applicationInfo.loadLabel(pm).toString());
                        jo.put("packageName", p.applicationInfo.packageName);
                        ja.put(jo);
                    }
                    System.out.print(ja);
                }        
        } catch (Exception e) {
            // TODO: handle exception
        }
        finally {
            // ... cleanup that will execute whether or not an error occurred ...
        }



}catch (Exception e) {
    // TODO: handle exception
}
finally {
    // ... cleanup that will execute whether or not an error occurred ...
}
    }}

抱歉,无法正确格式化代码.

Answer 1

此代码记录所有已安装应用程序的名称和包名称.您可以使用LogCat轻松检查日志(如果您使用的是Eclipse).

包名称 - 应用程序包的名称.

名称 - 与应用程序关联的文本标签.你不能使用appInfo.name它将返回null.使用appInfo.loadLabel(packageManager)你获得实际应用程序的名称,如Speech Recorder而不是包名com.android.speechrecorder.

final PackageManager packageManager = getPackageManager();
List<ApplicationInfo> installedApplications = 
   packageManager.getInstalledApplications(PackageManager.GET_META_DATA);

for (ApplicationInfo appInfo : installedApplications)
{
    Log.d("OUTPUT", "Package name : " + appInfo.packageName);
    Log.d("OUTPUT", "Name: " + appInfo.loadLabel(packageManager));
} 

Answer 2

这是我用来列出应用程序的代码：

PackageManager pm = this.getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN, null);

String activityName = rInfo.activityInfo.name;
List<ResolveInfo> list = pm.queryIntentActivities(intent, PackageManager.PERMISSION_GRANTED);

for (ResolveInfo rInfo : list) {
    pkg = rInfo.activityInfo.applicationInfo.packageName;
    if (pm.getLaunchIntentForPackage(pkg) == null) {
      continue;
    }
    String label = rInfo.activityInfo.applicationInfo.loadLabel(pm).toString();
    arrayList.add(new AppEntry(label, activityName, pkg, null));
}

如果您稍后只想运行仅知道 pkg 和 ActivityName 的应用程序，您可以执行以下操作：

Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setClassName(pkg, activityname);
ctx.startActivity(intent);