到目前为止,我有:
public class Info extends Activity {
int mAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
public Info() {
super();
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setResult(RESULT_CANCELED);
setContentView(R.layout.widget_activity_info);
findViewById(R.id.save_button).setOnClickListener(mOnClickListener);
Intent intent = getIntent();
Bundle extras = intent.getExtras();
if (extras != null) {
mAppWidgetId = extras.getInt(
AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
}
}
View.OnClickListener mOnClickListener = new View.OnClickListener() {
public void onClick(View v) {
final Context context = Info.this;
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
RemoteViews views = new RemoteViews(context.getPackageName(),
R.layout.widget_activity);
appWidgetManager.updateAppWidget(mAppWidgetId, views);
Intent resultValue = new Intent();
resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
setResult(RESULT_OK, resultValue);
finish();
}
};
}
基于此,我希望保存按钮成为默认图像,并创建另一个按钮,将更改android:dial =“@ drawable / widgetdial”到android:dial =“@ drawable / widgetdial2”。有没有办法做到这一点?
答案 0 :(得分:0)
好的,如果我理解正确,您希望在窗口小部件配置活动中有两个按钮(Info
)。一个按钮将在窗口小部件中切换图像(R.drawable.widgetdial
和R.drawable.widgetdial2
之间)。另一个按钮将保存选项并退出Info
活动。正确的吗?
当然,您需要在Info
活动的布局中添加一个按钮。我在下面引用了R.id.change_button
作为示例。
我测试了这个并且它有效。我已经为您的代码添加了一些代码,并标记了带有注释的新代码:
public class Info extends Activity {
//next three lines is new code
private int drawableSrc;
private TextView statusText;
private Button changeButton;
int mAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
public Info() {
super();
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setResult(RESULT_CANCELED);
setContentView(R.layout.widget_activity_info);
findViewById(R.id.save_button).setOnClickListener(mOnClickListener);
//next six lines is new code
statusText = (TextView)findViewById(R.id.text);
statusText.setText("Now showing widgetdial image");
changeButton = (Button)findViewById(R.id.change_button);
changeButton.setText("Change to widgetdial2 image");
drawableSrc = R.drawable.widgetdial;
changeButton.setOnClickListener(changeOnClickListener);
Intent intent = getIntent();
Bundle extras = intent.getExtras();
if (extras != null) {
mAppWidgetId = extras.getInt(
AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
}
}
View.OnClickListener mOnClickListener = new View.OnClickListener() {
public void onClick(View v) {
final Context context = Info.this;
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
RemoteViews views = new RemoteViews(context.getPackageName(),
R.layout.widget_activity);
//next line is new code, needs to come before updateWidgetApp
views.setImageViewResource(R.id.viewid, drawableSrc);
appWidgetManager.updateAppWidget(mAppWidgetId, views);
Intent resultValue = new Intent();
resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
setResult(RESULT_OK, resultValue);
finish();
}
};
//everything below this is new code
View.OnClickListener changeOnClickListener = new View.OnClickListener() {
public void onClick(View v) {
if(drawableSrc == R.drawable.widgetdial) {
drawableSrc = R.drawable.widgetdial2;
statusText.setText("Now showing widgetdial2 image");
changeButton.setText("Change to widgetdial image");
}
else {
drawableSrc = R.drawable.widgetdial;
statusText.setText("Now showing widgetdial image");
changeButton.setText("Change to widgetdial2 image");
}
}
};
}
我已将您要更改的内容引用为R.id.viewid
,但这只是一个示例ID引用。
根据您想要更改的内容(窗口小部件背景或窗口小部件imageview?),您可以在此处查看:Other SO question
以下是我用于Info
活动的示例布局(您引用为R.id.widget_activity_info
的文件):
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true" />
<Button
android:id="@+id/change_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_below="@id/text" />
<Button
android:id="@+id/save_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="Save"
android:layout_below="@id/change_button" />
</RelativeLayout>
如果它仍然不适合您,请查看my example I have uploaded for you。 zip文件包含可以导入到eclipse中的工作区。您可以在模拟器中运行它。
我希望这会对你有所帮助。