Android Notification 基础 （三）

remoteviews

2011-04-22 14:58:14|分类： Android 杂记 |标签：intremoteviewsviewidvoidlayout |字号大中小订阅

RemoteViews类描述了一个View对象能够显示在其他进程中，可以融合从一个 layout资源文件实现布局。虽然该类在android.widget.RemoteViews而不是appWidget下面但在Android Widgets开发中会经常用到它，主要是可以跨进程调用(appWidget由一个服务宿主来统一运行的)。

如何实例化一个RemoteViews

构造方法
<nobr></nobr>	<nobr><span>RemoteViews</span>(String packageName, int layoutId)</nobr> 创建一个新的RemoteViews对象将显示 views包含指定一个layout资源.
<nobr></nobr>	<nobr><span>RemoteViews</span>(Parcel parcel)</nobr> 读取RemoteViews对象从一个parcel中.

首先给大家一段例子简单说明下构造和如何使用

RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.appwidget_provider);
views.setTextViewText(R.id.appwidget_text, "Android开发网欢迎您");

appWidgetManager.updateAppWidget(appWidgetId, views);

详细的 该类的公共方法列表，下面的viewId为layout文件中的id定义，常用的方法已经翻译成中文描述。

Public Methods
<nobr>View</nobr>	<nobr><span>apply</span>(Context context, ViewGroup parent)</nobr> Inflates the view hierarchy represented by this object and applies all of the actions.
<nobr>int</nobr>	<nobr><span>describeContents</span>()</nobr> Describe the kinds of special objects contained in this Parcelable's marshalled representation.
<nobr>int</nobr>	<nobr><span>getLayoutId</span>()</nobr>
<nobr>String</nobr>	<nobr><span>getPackage</span>()</nobr>
<nobr>boolean</nobr>	<nobr><span>onLoadClass</span>(Class clazz)</nobr> Hook to allow clients of the LayoutInflater to restrict the set of Views that are allowed to be inflated.
<nobr>void</nobr>	<nobr><span>reapply</span>(Context context, View v)</nobr> Applies all of the actions to the provided view.
<nobr>void</nobr>	<nobr><span>setBitmap</span>(int viewId, String methodName, Bitmap value)</nobr> Call a method taking one Bitmap on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setBoolean</span>(int viewId, String methodName, boolean value)</nobr> Call a method taking one boolean on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setByte</span>(int viewId, String methodName, byte value)</nobr> Call a method taking one byte on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setChar</span>(int viewId, String methodName, char value)</nobr> Call a method taking one char on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setCharSequence</span>(int viewId, String methodName, CharSequence value)</nobr> Call a method taking one CharSequence on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setChronometer</span>(int viewId, long base, String format, boolean started)</nobr> Equivalent to calling Chronometer.setBase, Chronometer.setFormat, and Chronometer.start() or Chronometer.stop().
<nobr>void</nobr>	<nobr><span>setDouble</span>(int viewId, String methodName, double value)</nobr> Call a method taking one double on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setFloat</span>(int viewId, String methodName, float value)</nobr> Call a method taking one float on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setImageViewBitmap</span>(int viewId, Bitmap bitmap)</nobr> 等同于调用ImageView.setImageBitmap方法，从 Bitmap对象中设置一个图片
<nobr>void</nobr>	<nobr><span>setImageViewResource</span>(int viewId, int srcId)</nobr> 等同于调用ImageView.setImageResource，从一个 资源中设置图片
<nobr>void</nobr>	<nobr><span>setImageViewUri</span>(int viewId, Uri uri)</nobr> 等同于调用ImageView.setImageURI，从URI中设置图 像
<nobr>void</nobr>	<nobr><span>setInt</span>(int viewId, String methodName, int value)</nobr> Call a method taking one int on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setLong</span>(int viewId, String methodName, long value)</nobr> Call a method taking one long on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setOnClickPendingIntent</span>(int viewId, PendingIntent pendingIntent)</nobr> Equivalent to calling setOnClickListener(android.view.View.OnClickListener) to launch the provided PendingIntent.
<nobr>void</nobr>	<nobr><span>setProgressBar</span>(int viewId, int max, int progress, boolean indeterminate)</nobr> 等同于调用ProgressBar.setMax, ProgressBar.setProgress, and ProgressBar.如果indeterminate为true则进度条的最大和最小进度将会忽略
<nobr>void</nobr>	<nobr><span>setShort</span>(int viewId, String methodName, short value)</nobr> Call a method taking one short on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setString</span>(int viewId, String methodName, String value)</nobr> Call a method taking one String on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setTextColor</span>(int viewId, int color)</nobr> 等同于setTextColor(int).，设置文本的颜色
<nobr>void</nobr>	<nobr><span>setTextViewText</span>(int viewId, CharSequence text)</nobr> 等同于TextView.setText，设置文本内容
<nobr>void</nobr>	<nobr><span>setUri</span>(int viewId, String methodName, Uri value)</nobr> Call a method taking one Uri on a view in the layout for this RemoteViews.
<nobr>void</nobr>	<nobr><span>setViewVisibility</span>(int viewId, int visibility)</nobr> 等同于调用View.setVisibility，设置该ID控件的可见性
<nobr>void</nobr>	<nobr><span>writeToParcel</span>(Parcel dest, int flags)</nobr> Flatten this object in to a Parcel.