我有一个小部件，在点击文本视图时，会启动一个新活动，这是一个允许用户搜索的editText。搜索后，它会以所需结果打开应用程序。如果用户将应用程序置于后台，并且没有按下，则当用户再次单击窗口小部件时，不会显示搜索editText视图，而是将应用程序打开到停止的位置。
理想情况下，我希望每次调出搜索框，即使它覆盖了应用程序背后的应用程序。有什么想法吗？代码如下：
SearchWidgetClass：
public class SearchWidget extends AppWidgetProvider {
private static final String SHOW_POPUP_DIALOG_ACTION = "launch.search.widget";
private static final String LAUNCH_WIDGET = "launch.homescreen.widget";
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
ComponentName thisWidget = new ComponentName(context, SearchWidget.class);
int[] allWidgetInstancesIds = AppWidgetManager.getInstance(context).getAppWidgetIds(thisWidget);
for (int widgetId : allWidgetInstancesIds) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
R.layout.search_widget_layout);
// Create an intent that when received will launch the search bar
Intent searchIntent = new Intent(context, SearchWidget.class);
searchIntent.setAction(SHOW_POPUP_DIALOG_ACTION);
// Create an intent that when received will open the app on the home screen
Intent WidgetIntent = new Intent(context, SearchWidget.class);
WidgetIntent.setAction(LAUNCH_WIDGET);
PendingIntent searchPendingIntent = PendingIntent.getBroadcast(context, widgetId, searchIntent, PendingIntent.FLAG_UPDATE_CURRENT);
PendingIntent openPendingIntent = PendingIntent.getBroadcast(context, widgetId, WidgetIntent, PendingIntent.FLAG_UPDATE_CURRENT);
// Set up the onClickListener of the widget
// Now, when the widget is pressed the pendingIntent will be sent
remoteViews.setOnClickPendingIntent(R.id.widget_search_textview, searchPendingIntent);
remoteViews.setOnClickPendingIntent(R.id.widget_open, openPendingIntent);
appWidgetManager.updateAppWidget(widgetId, remoteViews);
}//End of For Each loop
super.onUpdate(context, appWidgetManager, appWidgetIds);
}//End of onUpdate method
@Override
public void onReceive(final Context context, Intent intent) {
Intent actionIntent;
if (intent.getAction().equals(SHOW_POPUP_DIALOG_ACTION)) {
actionIntent = new Intent(context, SearchWidgetDialogActivity.class);
actionIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(actionIntent);
} else if (intent.getAction().equals(LAUNCH_WIDGET)){
actionIntent = new Intent(context, HomeActivity.class);
actionIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(actionIntent);
}
super.onReceive(context, intent);
}//End of onReceive method
}//End of SearchWidget Class
搜索对话框活动：
public class SearchWidgetDialogActivity extends Activity {
private EditText searchWidgetEditText;
private String actionArg;
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.search_widget_dialog_layout);
LayoutParams params = getWindow().getAttributes();
params.width = LayoutParams.MATCH_PARENT;
getWindow().setAttributes((android.view.WindowManager.LayoutParams) params);
getWindow().setBackgroundDrawableResource(android.R.color.transparent);
searchWidgetEditText = (EditText) findViewById(R.id.search_widget_edit_text);
searchWidgetEditText.setOnEditorActionListener(new OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) &&
(!StringUtils.isEmpty(searchWidgetEditText.getText().toString()))) {
handleWidgetAction(SearchWidgetDialogActivity.this);
}
return false;
}
});
}//End of onCreate method
public void handleWidgetAction(Context aContext) {
actionArg = searchWidgetEditText.getText().toString();
QLog.d("Launching search activity for " + actionArg + " from the widget");
Intent serachProductsIntent = new Intent(aContext, BrowseProductsSearchActivity.class);
serachProductsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
serachProductsIntent.setAction(Intent.ACTION_SEARCH);
serachProductsIntent.putExtra(SearchManager.QUERY, actionArg);
serachProductsIntent.putExtra(SearchManager.USER_QUERY, actionArg);
aContext.startActivity(serachProductsIntent);
}//End of handleWidgetSearch method
}// End of SearchWidgetDialogActivity class
清单活动：
<activity
android:name="android.activities.SearchWidgetDialogActivity"
android:label="@string/app_label"
android:theme="@android:style/Theme.Dialog"
android:noHistory="true"
android:windowSoftInputMode="adjustResize">
</activity>
<receiver
android:name="android.widget.SearchWidget" >
<intent-filter>
<action android:name="launch.search.widget"/>
<action android:name="launch.homescreen.widget"/>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/search_widget_provider" />
</receiver>