TabActivity 中的activity 设置title无效

来源：互联网发布：unity3d 绘制矩形网格编辑：程序博客网时间：2024/05/14 09:55

TabActivity 的title 对于多个不同的activity 是通用的

如果想在子activity中设置 title

需要TabActivity中重载

@Overrideprotected void onChildTitleChanged(Activity childActivity,CharSequence title) {super.onChildTitleChanged(childActivity, title);TitleUtils.setTitleProgressShow(context);this.setTitle(title);}

然后才可以设置

---------------------------------------------------------

import android.app.Activity;import android.view.View;import android.view.ViewGroup;public class TitleUtils {/** * 注意：context.getWindow().findViewById * 该方法需要设设置requestWindowFeature(Window.FEATURE_PROGRESS); */public static void setTitleProgressShow(Activity context){// 显示进度条int titleId = getResId("com.android.internal.R$id", "title_container");// 显示标题栏ViewGroup mViewGroup = ((ViewGroup) context.getWindow().findViewById(titleId));if(mViewGroup != null){mViewGroup.setVisibility(View.VISIBLE);}context.setProgressBarIndeterminateVisibility(true);}public static void setTitleProgressHidden(Activity context){// 显示进度条//int titleId = getResId("com.android.internal.R$id", "title_container");//// 显示标题栏//((ViewGroup) context.getWindow().findViewById(titleId)).setVisibility(View.INVISIBLE);context.setProgressBarIndeterminateVisibility(false);context.setProgress(0);}public static void setTitleProgressGone(Activity context){// 显示进度条int titleId = getResId("com.android.internal.R$id", "title_container");// 显示标题栏ViewGroup mViewGroup = ((ViewGroup) context.getWindow().findViewById(titleId));if(mViewGroup != null){mViewGroup.setVisibility(View.GONE);}context.setProgressBarIndeterminateVisibility(true);}/** * 获取资源ID * 用法：getResId("com.android.internal.R$id", "title_container"); * @return */public static int getResId(String rClassName, String resName){int resId = 0;try{Class<?> r = Class.forName(rClassName);resId = r.getField(resName).getInt(null);}catch(Exception e){e.printStackTrace();}return resId;}