package cn.zengfansheng.getIconApp;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Bundle;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 1、获取包管理器
PackageManager packageManager = getPackageManager();
// 2、查询所有的Activity,根据符合条件的intent
Intent intent = new Intent();
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
int flags = PackageManager.GET_RESOLVED_FILTER;// 这个标记一定要加上，IntentFilter
List<ResolveInfo> queryIntentActivities = packageManager.queryIntentActivities(intent, flags);
// 3、遍历
for (ResolveInfo resolveInfo : queryIntentActivities) {
String packageName = resolveInfo.activityInfo.packageName;// 包名
String name = resolveInfo.activityInfo.name;// android:name属性的值
String iconName = resolveInfo.activityInfo.applicationInfo.loadIcon(packageManager).toString();
System.out.println(packageName);
System.out.println(name);
System.out.println(iconName);
System.out.println("----------");
}
System.out.println(queryIntentActivities.size());
}
}
