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我學習創建Android部件從https://looksok.wordpress.com/2012/12/15/android-complete-widget-tutorial-including-source-code/擴展的clickCount超過2項
教程教程下面展示瞭如何構建Android窗口小部件一個按鈕和圖像。按下按鈕將改變顯示的圖像。
public class MyWidgetIntentReceiver extends BroadcastReceiver {
private static int clickCount = 0;
@Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals("pl.looksok.intent.action.CHANGE_PICTURE")){
updateWidgetPictureAndButtonListener(context);
}
}
private void updateWidgetPictureAndButtonListener(Context context) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_demo);
remoteViews.setImageViewResource(R.id.widget_image, getImageToSet());
//REMEMBER TO ALWAYS REFRESH YOUR BUTTON CLICK LISTENERS!!!
remoteViews.setOnClickPendingIntent(R.id.widget_button, MyWidgetProvider.buildButtonPendingIntent(context));
MyWidgetProvider.pushWidgetUpdate(context.getApplicationContext(), remoteViews);
}
private int getImageToSet() {
clickCount++;
return clickCount % 2 == 0 ? R.drawable.me : R.drawable.wordpress_icon;
}
}
我想要做的是延長clickCount
多個(12張圖像)。作者評論說: 認沽可繪製在一個ArrayList和按鈕,點擊之後得到繪製相應的clickCount 記住計數器復位,如果它達到的ArrayList的大小,以避免IndexOutOfBounds例外
但我真的對如何做到這一點不知道因爲我只有在Java和Android開發方面的知識。