本文介绍了对AppWidget更新的TextView文本大小的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我不知道这一点，我一直在挣扎好几天了，我很厌倦了。
我是从一个配置活动变化上AppWidget有微调一个TextView的文本大小，我不能让它正确地更新。它不更新，我第一次告诉它，但它确实在第二和第三，每一次更新之后
我会真的真的AP preciate如果有人来看看我的code
非常感谢你。
配置类：
公共类WidgetConfig扩展活动实现OnItemSelectedListener {
对话myDialog;
上下文的背景下= WidgetConfig.this;
的EditText静态信息;
静态微调微调;
串appwidget_textsize =0;
私有静态最后字符串[]路径= {10，12，14，16，18，20，
22，24，26，28，30，32，34，36，38，40，50，60};
私有静态最后弦乐preFS_NAME =com.harteg.NotesWidgetPro.Widget;
私有静态最后弦乐preF_ preFIX_KEY =prefix_;
私有静态最后字符串变量=MyActivity;
INT mAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
浮数;
公共WidgetConfig（）{
超（）;
}
@覆盖
保护无效的onCreate（包savedInstanceState）{
// TODO自动生成方法存根
super.onCreate（savedInstanceState）;
Log.v（TAG的onCreate（）开始）;
的setContentView（R.layout.widgetconfig）;
上下文= WidgetConfig.this;
//后退按钮=取消
的setResult（RESULT_CANCELED）;
信息=（EditText上）findViewById（R.id.etwidgetconfig）;
findViewById（R.id.bwidgetconfig）.setOnClickListener（mOnClickListener）;
findViewById（R.id.bwidgetconfig1）.setOnClickListener（mOnClickListener）;
//查找意图的小部件ID。
意向意图= getIntent（）;
捆绑额外= intent.getExtras（）;
如果（临时演员！= NULL）{
mAppWidgetId = extras.getInt（AppWidgetManager.EXTRA_APPWIDGET_ID，
AppWidgetManager.INVALID_APPWIDGET_ID）;
}
//如果他们给了我们一个意图不小部件ID，只是保释。
如果（mAppWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID）{
完（）;
}
info.setText（loadTitle preF（WidgetConfig.this，mAppWidgetId））;
// ------------文字大小微调---------------
微调=（微调）findViewById（R.id.TxtSizeSP）;
ArrayAdapter＆LT;字符串＆GT;适配器=新的ArrayAdapter＆LT;字符串＆GT;（WidgetConfig.this，
android.R.layout.simple_spinner_item，路径）;
adapter.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
spinner.setAdapter（适配器）;
spinner.setOnItemSelectedListener（本）;
// ------------------------------------------------ -
} //的onCreate完成
公共无效onItemSelected（适配器视图＆LT;＆GT;母公司，视图V，INT位置，长的id）{
Log.v（TAG，OnItemselected开始）;
开关（位置）{
情况下0：
info.setTextSize（10.0f）;
Log.v（TAG，chosed位置0）;
appwidget_textsize =10的ToString（）;
打破;
...
}
数= Float.valueOf（appwidget_textsize）;
}
公共无效onNothingSelected（适配器视图＆LT;＆GT;为arg0）{
}
View.OnClickListener mOnClickListener =新View.OnClickListener（）{
公共无效的onClick（视图v）{
Log.v（TAG，设置远程视图）;
RemoteViews意见=新RemoteViews（context.getPackageName（），R.layout.widget）;
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance（上下文）;
Log.v（TAG，设置TXT大小）;
views.setFloat（R.id.tvConfigInputsetTextSize，号码）;
appWidgetManager.updateAppWidget（mAppWidgetId，意见）;
Log.v（TAG，过TXT大小）;
//当单击该按钮，保存在字符串中我们preFS和
//返回他们点击确定。
。字符串标题preFIX = info.getText（）的toString（）;
saveTitle preF（背景下，mAppWidgetId，标题preFIX）;
//推小窗口更新与新设置的preFIX浮出水面
Widget.updateAppWidget（背景下，appWidgetManager，mAppWidgetId，
标题preFIX，意见）;
//确保我们传回了原来的appWidgetId
意图resultValue =新意图（）;
resultValue.putExtra（AppWidgetManager.EXTRA_APPWIDGET_ID，
mAppWidgetId）;
的setResult（RESULT_OK，resultValue）;
Log.v（TAG的onClick做）;
完（）;
}
};
//写preFIX到共享preferences对象为这个小工具
静态无效saveTitle preF（上下文的背景下，INT mAppWidgetId，文本字符串）{
共享preferences.Editor编辑= context.getShared preferences（preFS_NAME，0）.edit（）;
editor.putString（preF_ preFIX_KEY + mAppWidgetId，文本）;
//保存值
editor.commit（）;
}
//读取从共享preferences的preFIX对象为这个小程序。
静态字符串loadTitle preF（上下文的背景下，INT mAppWidgetId）{
共享preferences preFS = context.getShared preferences（preFS_NAME，MODE_PRIVATE）;
字符串preFIX = prefs.getString（preF_ preFIX_KEY + mAppWidgetId，NULL）;
//如果没有preference保存，得到从资源的默认
如果（preFIX！= NULL）{
返回preFIX;
} 其他 {
返回context.getString（R.string.appwidget_ prefix_default）;
}
}
静态无效deleteTitle preF（上下文的背景下，INT mAppWidgetId）{
}
静态无效loadAllTitle preFS（上下文的背景下，
ArrayList的＆LT;整数GT; mAppWidgetIds，ArrayList的＆LT;字符串＆GT;文本）{
}
}
AppWidgetProvider类：
公共类的Widget扩展AppWidgetProvider {
私有静态最后字符串变量=MyActivity;
@覆盖
公共无效的OnUpdate（上下文的背景下，AppWidgetManager appWidgetManager，
INT [] appWidgetIds）{
Log.v（TAG的onupdate开始）;
// TODO自动生成方法存根
//super.onUpdate(context，appWidgetManager，appWidgetIds）;
最终诠释N = appWidgetIds.length;
RemoteViews意见=新RemoteViews（context.getPackageName（），R.layout.widget）;
的for（int i = 0; I＆n种;我++）{
INT mAppWidgetId = appWidgetIds [I]
字符串标题preFIX = WidgetConfig.loadTitle preF（背景下，mAppWidgetId）;
updateAppWidget（背景下，appWidgetManager，mAppWidgetId，标题preFIX，意见）;
}
}
@覆盖
公共无效onDeleted（上下文的背景下，INT [] appWidgetIds）{
最终诠释N = appWidgetIds.length;
的for（int i = 0; I＆n种;我++）{
WidgetConfig.deleteTitle preF（背景下，appWidgetIds [I]）;
}
}
...
静态无效updateAppWidget（上下文的背景下，AppWidgetManager appWidgetManager，
INT mAppWidgetId，字符串标题preFIX，RemoteViews意见）{
Log.v（TAG，updateAppWidget开始）;
//获取字符串这种方式允许本地化的字符串。该格式
//字符串填充使用的java.util.Formatter风格的格式字符串。
CharSequence的文字= context.getString（R.string.appwidget_text_format，
WidgetConfig.loadTitle preF（背景下，mAppWidgetId））;
appWidgetManager = AppWidgetManager.getInstance（上下文）;
...
意见=新RemoteViews（context.getPackageName（），R.layout.widget）;
views.setTextViewText（R.id.tvConfigInput，文本）;
//告诉AppWidgetManager对当前应用程序部件进行更新
Log.v（TAG，底部更新开始）;
appWidgetManager.updateAppWidget（mAppWidgetId，意见）;
}
}
的strings.xml
＆LT;资源的xmlns：XLIFF =金塔：绿洲：名称：TC：XLIFF：文件：1.2＆GT;
＆LT;字符串名称=appwidget_ prefix_default＆GT;＆LT; /串＆GT;
＆LT;字符串名称=appwidget_textsize＆GT;＆LT; /串＆GT;
＆LT;字符串名称=appwidget_text_format＆GT;＆LT; XLIFF：摹ID =preFIX＆GT;％1 $ S＆LT; / XLIFF：G＆GT;＆LT; /串＆GT;
...
＆LT; /资源＆GT;
解决方案
所以，我终于得到它想要一百万个不同的事情后工作。最后我传递一个字符串，通过共享preferences，以同样的方式我得到了文本的小部件，以及刚刚成立 views.setFloat（R.id.TextView，setTextSize的价值， Float.valueOf（SizeString））; 窗口小部件提供它的自我。
I can not figure this out, I've been struggling with it for days now, and I'm so tired of it..
I'm changing the text size of a TextView on an AppWidget with a Spinner from a Configuration Activity, and I can't get it to update correctly. It does not update the first time I tell it to, but it does update the second and third and every time afterwards.
I'll really really appreciate if someone would take a look at my code
Thank you very much
Config class:
public class WidgetConfig extends Activity implements OnItemSelectedListener{
Dialog myDialog;
Context context = WidgetConfig.this;
static EditText info;
static Spinner spinner;
String appwidget_textsize = "0";
private static final String[] paths = { "10", "12", "14", "16", "18", "20",
"22", "24", "26", "28", "30", "32", "34", "36", "38", "40", "50", "60"};
private static final String PREFS_NAME = "com.harteg.NotesWidgetPro.Widget";
private static final String PREF_PREFIX_KEY = "prefix_";
private static final String TAG = "MyActivity";
int mAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
float number;
public WidgetConfig() {
super();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
Log.v(TAG, "onCreate() started");
setContentView(R.layout.widgetconfig);
context = WidgetConfig.this;
// back button = cancel
setResult(RESULT_CANCELED);
info = (EditText) findViewById(R.id.etwidgetconfig);
findViewById(R.id.bwidgetconfig).setOnClickListener(mOnClickListener);
findViewById(R.id.bwidgetconfig1).setOnClickListener(mOnClickListener);
// Find the widget id from the intent.
Intent intent = getIntent();
Bundle extras = intent.getExtras();
if (extras != null) {
mAppWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID,
AppWidgetManager.INVALID_APPWIDGET_ID);
}
// If they gave us an intent without the widget id, just bail.
if (mAppWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID) {
finish();
}
info.setText(loadTitlePref(WidgetConfig.this, mAppWidgetId));
//------------ Text Size spinner ---------------
spinner = (Spinner) findViewById(R.id.TxtSizeSP);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(WidgetConfig.this,
android.R.layout.simple_spinner_item, paths);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(this);
//--------------------------------------------------
} // onCreate finished
public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
Log.v(TAG, "OnItemselected started");
switch (position) {
case 0:
info.setTextSize(10.0f);
Log.v(TAG, "position 0 chosed");
appwidget_textsize = "10".toString();
break;
...
}
number = Float.valueOf(appwidget_textsize);
}
public void onNothingSelected(AdapterView<?> arg0) {
}
View.OnClickListener mOnClickListener = new View.OnClickListener() {
public void onClick(View v) {
Log.v(TAG, "set remote view");
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
Log.v(TAG, "set txt size");
views.setFloat(R.id.tvConfigInput, "setTextSize", number);
appWidgetManager.updateAppWidget(mAppWidgetId, views);
Log.v(TAG, "over txt size");
// When the button is clicked, save the string in our prefs and
// return that they clicked OK.
String titlePrefix = info.getText().toString();
saveTitlePref(context, mAppWidgetId, titlePrefix);
// Push widget update to surface with newly set prefix
Widget.updateAppWidget(context, appWidgetManager, mAppWidgetId,
titlePrefix, views);
// Make sure we pass back the original appWidgetId
Intent resultValue = new Intent();
resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
mAppWidgetId);
setResult(RESULT_OK, resultValue);
Log.v(TAG, "onClick done");
finish();
}
};
// Write the prefix to the SharedPreferences object for this widget
static void saveTitlePref(Context context, int mAppWidgetId, String text) {
SharedPreferences.Editor editor = context.getSharedPreferences(PREFS_NAME, 0).edit();
editor.putString(PREF_PREFIX_KEY + mAppWidgetId, text);
// Saves the values
editor.commit();
}
// Read the prefix from the SharedPreferences object for this widget.
static String loadTitlePref(Context context, int mAppWidgetId) {
SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
String prefix = prefs.getString(PREF_PREFIX_KEY + mAppWidgetId, null);
// If there is no preference saved, get the default from a resource
if (prefix != null) {
return prefix;
} else {
return context.getString(R.string.appwidget_prefix_default);
}
}
static void deleteTitlePref(Context context, int mAppWidgetId) {
}
static void loadAllTitlePrefs(Context context,
ArrayList<Integer> mAppWidgetIds, ArrayList<String> texts) {
}
}
AppWidgetProvider class:
public class Widget extends AppWidgetProvider {
private static final String TAG = "MyActivity";
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
Log.v(TAG, "onUpdate started");
// TODO Auto-generated method stub
//super.onUpdate(context, appWidgetManager, appWidgetIds);
final int N = appWidgetIds.length;
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
for (int i=0; i<N; i++){
int mAppWidgetId = appWidgetIds[i];
String titlePrefix = WidgetConfig.loadTitlePref(context, mAppWidgetId);
updateAppWidget(context, appWidgetManager, mAppWidgetId, titlePrefix, views);
}
}
@Override
public void onDeleted(Context context, int[] appWidgetIds) {
final int N = appWidgetIds.length;
for (int i=0; i<N; i++) {
WidgetConfig.deleteTitlePref(context, appWidgetIds[i]);
}
}
...
static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
int mAppWidgetId, String titlePrefix, RemoteViews views) {
Log.v(TAG, "updateAppWidget started");
// Getting the string this way allows the string to be localized. The format
// string is filled in using java.util.Formatter-style format strings.
CharSequence text = context.getString(R.string.appwidget_text_format,
WidgetConfig.loadTitlePref(context, mAppWidgetId));
appWidgetManager = AppWidgetManager.getInstance(context);
...
views = new RemoteViews(context.getPackageName(), R.layout.widget);
views.setTextViewText(R.id.tvConfigInput, text);
// Tell the AppWidgetManager to perform an update on the current app widget
Log.v(TAG, "Bottom update started");
appWidgetManager.updateAppWidget(mAppWidgetId, views);
}
}
Strings.xml
<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
<string name="appwidget_prefix_default"></string>
<string name="appwidget_textsize"></string>
<string name="appwidget_text_format"><xliff:g id="prefix">%1$s</xliff:g></string>
...
</resources>
解决方案
So i finally got it working after trying a million different things. I ended up passing a string with the value via sharedpreferences, the same way i got the text to the widget, and just set views.setFloat(R.id.TextView, "setTextSize", Float.valueOf(SizeString)); in the widget provider it self.
这篇关于对AppWidget更新的TextView文本大小的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！