android开发之获取手机所有应用的包名

public class Main3Activity extends AppCompatActivity {

private List<ResolveInfo> apps = new ArrayList<>();

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
loadApps();
}
private void loadApps() {
Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
apps = getPackageManager().queryIntentActivities(intent, 0);
//for循环遍历ResolveInfo对象获取包名和类名
for (int i = 0; i < apps.size(); i++) {
ResolveInfo info = apps.get(i);
String packageName = info.activityInfo.packageName;
CharSequence cls = info.activityInfo.name;
CharSequence name = info.activityInfo.loadLabel(getPackageManager());
Log.e("ddddddd",name+"----"+packageName+"----"+cls);
}
}

}