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我有一個具有配置活動的Android小部件。我還在窗口小部件上設置了一個ImageView「按鈕」來啓動配置活動，以防用戶想要在初始化後更改其偏好設置。Android：Widget配置活動兩次啓動？
所以，基本的生命週期：
- 用戶添加小部件
- 配置活動彈出，用戶在字段中填入並點擊「提交」
- 小工具在屏幕上添加
- 用戶點擊ImageView啓動配置活動
- 配置活動彈出，用戶編輯字段
- 在點擊「提交」或退出，小部件更新
- 用戶可以根據需要繼續執行步驟5和6。
我的問題是，在第5步第一個和只用戶水龍頭的ImageView的，它看起來像兩個配置活動，在第一時間推出。也就是說，當我退出第一個時，還有另一個「落後」。然而，在配置活動的所有後續啓動中，只有一個啓動並且一切正常。
可能是什麼問題？我將在下面發佈相關代碼。
的AndroidManifest.xml
<activity
android:name=".ConfigActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
</intent-filter>
</activity>
<receiver
android:name=".Widget"
android:label="Widget" >
<intent-filter>
<action
android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<intent-filter>
<action
android:name="android.appwidget.action.APPWIDGET_UPDATE" />
<data android:scheme="sample_widget" />
</intent-filter>
<intent-filter>
<action
android:name="com.this.that.WIDGET_CONTROL" />
<data
android:scheme="sample_widget" />
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/widget" />
</receiver>
AppWidget-提供商widget.xml
<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider
xmlns:android="http://schemas.android.com/apk/res/android"
android:updatePeriodMillis="5000"
android:minWidth="294dp"
android:minHeight="220dp"
android:initialLayout="@layout/widgetlayout"
android:configure="com.this.that.ConfigActivity" >
</appwidget-provider>
ConfigActivity.java
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the data we were launched with
Intent launchIntent = getIntent();
Bundle extras = launchIntent.getExtras();
if (extras != null) {
appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
Intent cancelResultValue = new Intent();
cancelResultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
setResult(RESULT_CANCELED, cancelResultValue);
} else {
// Only launch if it's for configuration
finish();
}
setContentView(R.layout.myconfig);
// Create Buttons/EditTexts
SubmitBTN = (Button) findViewById(R.id.BTNSubmit);
SampleET= (EditText) findViewById(R.id.ETSample);
SubmitBTN.setOnClickListener(submitListener);
loadPreferences(ConfigActivity.this, appWidgetId);
}
private OnClickListener submitListener = new OnClickListener() {
public void onClick(View v) {
final Context context = PriorityViewConfig.this;
// Save strings in our prefs
String sample = SampleET.getText().toString();
SharedPreferences.Editor prefs = context.getSharedPreferences(PREFS_NAME, 0).edit();
prefs.putString(PREF_PREFIX_KEY + appWidgetId + "sample", sample);
prefs.commit();
if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) {
// Tell the AppWidgetManager that we're now configured
Intent resultValue = new Intent();
//resultValue.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
setResult(RESULT_OK, resultValue);
// Get an instance of the AppWidgetManager
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
// Update the App Widget with the layout
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widgetlayout);
Widget.updateDisplayState(context, appWidgetId);
}
// Activity is now done
finish();
}
};
private void loadPreferences(Context context, int appWidgetId) {
SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, 0);
String sample = prefs.getString(PREF_PREFIX_KEY + appWidgetId + "sample", null);
if (sample != null) {
SampleET.setText(sample);
} else {
// Nothing stored, don't need to do anything
}
}
Widget.java
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
Log.d(LOG_TAG, "OnReceive:Action: " + action);
if (ACTION_WIDGET_CONTROL.equals(action)) {
// Pass this on to the action handler where we'll figure out what to do and update the widget
final int appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) {
this.onHandleAction(context, appWidgetId, intent.getData());
}
}
super.onReceive(context, intent);
}
public static void updateDisplayState(Context context, int appWidgetId) {
Intent configIntent = new Intent(context, ConfigActivity.class);
configIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
// Make this unique for this appWidgetId
configIntent.setData(Uri.withAppendedPath(Uri.parse(Widget.URI_SCHEME + "://widget/id/"), String.valueOf(appWidgetId)));
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, configIntent, PendingIntent.FLAG_UPDATE_CURRENT);
views.setOnClickPendingIntent(R.id.IVConfig, pendingIntent);
AppWidgetManager.getInstance(context).updateAppWidget(appWidgetId, views);
}
private void onHandleAction(Context context, int appWidgetId, Uri data) {
String controlType = data.getFragment();
// Nothing here yet
updateDisplayState(context, appWidgetId);
}
我認爲這些是最相關的部分。我將進一步探討的地方是在ConfigActivity.java中的submitListener和在Widget.java中的updateDisplayState方法
任何幫助都會很棒！謝謝！