Question

我正在尝试获取手机上所有可用发射器的列表。单击列表中的特定启动器应使其成为默认的主屏幕启动器。单击默认电话启动器（三星的TouchWiz Home）时，应用程序停止运行（但返回到之前设置的主屏幕）。我只能打开第三方发射器，但它没有被设置为默认主屏幕，点击主页按钮后它会回到上一个主屏幕。代码如下。是否有任何可能使其工作理想地像一个弹出列表，Android提供选择启动主屏幕并使其默认？有什么帮助吗？谢谢！

    public class AppsListActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_apps_list);
    loadApps();
    loadListView();
    addClickListener();
}
private PackageManager manager;
private List<AppDetail> apps;
private void loadApps(){
    manager = getPackageManager();
    apps = new ArrayList<AppDetail>();
    Intent i = new Intent(Intent.ACTION_MAIN, null);
    i.addCategory(Intent.CATEGORY_HOME);

    List<ResolveInfo> availableActivities = manager.queryIntentActivities(i, 0);
    for(ResolveInfo ri:availableActivities){
        AppDetail app = new AppDetail();  
        /* public class AppDetail {
        CharSequence label;
        CharSequence name;
        Drawable icon;}*/
        app.label = ri.loadLabel(manager);
        app.name = ri.activityInfo.packageName;
        app.icon = ri.activityInfo.loadIcon(manager);
        apps.add(app);
    }
}
private ListView list;
private void loadListView(){
    list = (ListView)findViewById(R.id.apps_list);
    ArrayAdapter<AppDetail> adapter = new ArrayAdapter<AppDetail>(this,R.layout.list_item,apps) {
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            if(convertView == null){
                convertView = getLayoutInflater().inflate(R.layout.list_item, null);
            }

            ImageView appIcon = (ImageView)convertView.findViewById(R.id.item_app_icon);
            appIcon.setImageDrawable(apps.get(position).icon);
            TextView appLabel = (TextView)convertView.findViewById(R.id.item_app_label);
            appLabel.setText(apps.get(position).label);
            TextView appName = (TextView)convertView.findViewById(R.id.item_app_name);
            appName.setText(apps.get(position).name);
            return convertView;
        }
    };
    list.setAdapter(adapter);    }

private void addClickListener() {
    list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> av, View v, int pos,long id){
            Intent i = manager.getLaunchIntentForPackage(apps.get(pos).name.toString());
            ComponentName cn = i.getComponent();
            i.setClassName(cn.getPackageName(),cn.getClassName());
            i.setAction(Intent.ACTION_MAIN);
            i.addCategory(Intent.CATEGORY_HOME);
            i.addCategory(Intent.CATEGORY_DEFAULT);
            AppsListActivity.this.startActivity(i);

        }
    });
}
}

Answer 1

我尝试使用Android的默认设置应用。可以直接启动设置应用程序以选择使用以下代码

    Intent i = new Intent(Settings.ACTION_HOME_SETTINGS);
    startActivity(i);

无法从所有启动器列表中启动默认主屏幕

1 个答案: