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我正在构建一个Widget,该Widget显示可在配置类中编辑为edittext的textview。我刚刚实现了sharedpreferences,因此当用户第二次或第三次编辑widget时,已输入的文本将出现在配置类的edittext字段中。带有SharedPreferences的AppWidget必须更新两次
它的工作我猜。那么,在我实现sharedpreferences之前,widget在配置后会更新得很好。但现在,我编辑文本,按apply,但小部件不更新,然后我再次编辑小部件,小部件用我以前应用到它的文本更新。所以我想你可以说,这是一个延迟的更新。我希望我很清楚,这有点难以解释。
那我做错了,我无法得到它的工作,任何帮助将是非常赞赏。
代码:
public class WidgetConfig extends Activity implements OnClickListener {
AppWidgetManager awm;
int awID;
Context c;
EditText info;
Button b;
String note;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.widgetconfig);
c = WidgetConfig.this;
info = (EditText)findViewById(R.id.etwidgetconfig);
b = (Button)findViewById(R.id.bwidgetconfig);
loadPrefs();
b.setOnClickListener(this);
//Getting Info about the widget that launched this activity
Intent i = getIntent();
Bundle extras = i.getExtras();
if (extras != null){
awID = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID,
AppWidgetManager.INVALID_APPWIDGET_ID);
}
awm = AppWidgetManager.getInstance(c);
}
private void loadPrefs(){
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
note = sp.getString("NOTE", "DEFAULT");
info.setText(note);
}
private void savePrefs(String key, String value){
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = preferences.edit();
editor.putString(key, value); // value to store
editor.commit();
}
public void onClick(View v) {
// TODO Auto-generated method stub
savePrefs("NOTE", info.getText().toString());
RemoteViews views = new RemoteViews(c.getPackageName(), R.layout.widget);
views.setTextViewText(R.id.tvConfigInput, note);
ComponentName thisWidget = new ComponentName(this, Widget.class);
AppWidgetManager manager = AppWidgetManager.getInstance(this);
manager.updateAppWidget(thisWidget, views);
Intent in = new Intent(c, WidgetConfig.class);
PendingIntent pi = PendingIntent.getActivity(c, 0, in, PendingIntent.FLAG_UPDATE_CURRENT);
views.setOnClickPendingIntent(R.id.B_EditAgain, pi);
awm.updateAppWidget(awID, views);
Intent result = new Intent();
result.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, awID);
setResult(RESULT_OK, result);
finish();
}
}
只是简单快速解决我所期待的,谢谢你了! – Jakob