做安卓开发,如果你要开发一个用程序
对于开发，如果要开发一个应用管理软件或者在自己开发的应用中管理当前手机中的所有应用（即管理App），需要获取当前手机安装的软件。如何获取中所有app的列表，本文提供了一个方法天外神坛源码网，看下面的例子：<p><pre> <code class="language-java">public class GetAppInfoActivity extends Activity {
private List<Map<String, Object>> data;
Map<String, Object> item;
private ListView listView = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
listView = new ListView(this);
data = new ArrayList<Map<String, Object>>();
listPackages();
SimpleAdapter adapter = new SimpleAdapter(this, data,android.R.layout.simple_list_item_2, new String[] { "appname","pname" }, new int[] { android.R.id.text1,android.R.id.text2, });
listView.setAdapter(adapter);
setContentView(listView);
}
class PInfo {
private String appname = "";
private String pname = "";
private String versionName = "";
private int versionCode = 0;
private Drawable icon;
private void prettyPrint() {
Log.i("taskmanger", appname + "\t" + pname + "\t" + versionName
+ "\t" + versionCode + "\t");
}
}
private void listPackages() {
ArrayList<PInfo> apps = getInstalledApps(false);
final int max = apps.size();
for (int i = 0; i < max; i++) {
apps.get(i).prettyPrint();
item = new HashMap<String, Object>();
item.put("appname", apps.get(i).appname);
item.put("pname", apps.get(i).pname);
data.add(item);
}
}
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;
}
}</code></pre></p>
本文获取当前手机上安装的所有应用获得安卓程序的源码，并在示例代码中展示，希望对广大开发者有所帮助。本文代码仅供参考，开发者可以在本文的基础上进行扩展。技术问题欢迎进群讨论：获得安卓程序的源码，验证码：csl，不写验证不通过。
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