Android 小部件主题更改

Question

当在我的 Android 应用程序中进行主题更改时，如何在小部件中设置主题更改？

我尝试过这样的方法，但没有得到任何结果。

 int themeMode = mContext.getSharedPreferences("DH_MODE", Context.MODE_PRIVATE).getInt("DH_MODE", 0);

        switch (themeMode){
            case 0: {
                // Gündüz modu
                rv.setImageViewResource(R.id.img_flame, R.drawable.evening_logo);
                rv.setTextViewText(R.id.txt_title," Gündüz modu");
                rv.setTextColor(R.id.txt_title, Color.parseColor("#000000"));//siyah

                break;
            }
            case 1: {
                //Gece modu
                rv.setImageViewResource(R.id.img_flame, R.drawable.evening_logo); // logolar da değişecekse diye imageview i de ekledim
                rv.setTextViewText(R.id.txt_title," Gece modu");
                rv.setTextColor(R.id.txt_title, Color.parseColor("#ffffff"));//beyaz
                break;
            }
            case 2: {
                //Gün batımı modu
                rv.setImageViewResource(R.id.img_flame, R.drawable.evening_logo);
                rv.setTextViewText(R.id.txt_title," gün batımı modu ");
                rv.setTextColor(R.id.txt_title, Color.parseColor("#ffffff"));//beyaz
                break;
            }
            case 3:{
                rv.setImageViewResource(R.id.img_flame, R.drawable.evening_logo);
                rv.setTextViewText(R.id.txt_title," akşam modu");
                rv.setTextColor(R.id.txt_title, Color.parseColor("#ffffff"));//beyaz
            }
        }

Answer 1

当您的应用中的主题在您的 MainActivity 中更改时尝试更新小部件，或者 activity 主题更改在以下位置收到通知：

    val widgetManagerObj = AppWidgetManager.getInstance(applicationContext)
    val appWidgetIdArr = widgetManagerObj.getAppWidgetIds(ComponentName(applicationContext, YourWidgetProvider::class.java))
    val refreshIntentObj = Intent(applicationContext, YourWidgetProvider::class.java)
    refreshIntentObj.action = STATUS_ACTION
    refreshIntentObj.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIdArr)
    sendBroadcast(refreshIntentObj)

并保持您在问题中提供的代码不变。告诉我它是否有效:)

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