Question

我一直在尝试设置主屏幕小部件上的按钮以重新打开ConfigActivity。但是我无法做到。

我已经尝试了一下stackoverflow，android dev指南以及其他非官方教程，并且一直在尝试所有建议的方式，但到目前为止还没有运气。

这是AppWidgetProvider（）

中的onUpdate（）

RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
Intent intent = new Intent(context, ConfigActivity.class);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

views.setOnClickPendingIntent(R.id.widget_refresh, pendingIntent);

我尝试过额外，数据，标志，没有运气。

ConfigActivity只是将小部件放在主屏幕上时首次启动的Activity。 R.layout.widget是小部件的布局 R.id.widget_refresh是按钮ID

我还有什么需要做的吗？我缺少什么？

我的ConfigActivity.java

public class ConfigActivity extends Activity implements android.view.View.OnClickListener {

private int appWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.configactivity);
    Intent intent = new Intent();
    intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    setResult(Activity.RESULT_CANCELED, intent);

    assignAppWidgetId();
    findViewById(R.id.widgetactivity_button).setOnClickListener(this);
}

/**
 * Widget configuration activity,always receives appwidget Id appWidget Id =
 * unique id that identifies your widget analogy : same as setting view id
 * via @+id/viewname on layout but appwidget id is assigned by the system
 * itself
 */
private void assignAppWidgetId() {
    Bundle extras = getIntent().getExtras();
    if (extras != null)
        appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID,
                AppWidgetManager.INVALID_APPWIDGET_ID);
}


public void onClick(View v) {
    if (v.getId() == R.id.widgetactivity_button)
        startWidget();
}

/**
 * This method right now displays the widget and starts a Service to fetch
 * remote data from Server
 */
private void startWidget() {

    // this intent is essential to show the widget
    // if this intent is not included,you can't show
    // widget on homescreen
    Intent intent = new Intent();
    intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    setResult(Activity.RESULT_OK, intent);

    // start your service
    // to fetch data from web
    Intent serviceIntent = new Intent(this, RemoteFetchService.class);
    serviceIntent
            .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    startService(serviceIntent);

    // finish this activity
    this.finish();
}
}

编辑：我已经解决了问题，将意图放在onReceive（）而不是onUpdate（）上，我可以让小部件再次接收正常的点击。

Widget Android上的按钮

0 个答案: