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我有一个TabHost应用程序与4个选项卡。Android的TabHost /后退按钮
标签1 列表A>列表B>视图
标签2 相机活性的启动相机和闪光灯的onCreate
标签3 列表C>查看
标签4 视图d>查看E
因此，当我第一次启动应用程序时，我可以在没有任何问题的情况下来回访问不同的标签页。但是，一旦我启动了Tab 2（摄像机标签），并从那里进入其他标签，然后沿着堆叠进入，当我按下后退按钮时，即使我不在标签2（即列表B中，按回来按钮和相机开始，即使我只是回到列表A）...当我再次进入Tab 2时，应用程序将崩溃（对不起，Android相机遇到问题...等）
谁能告诉我问题是什么？下面是我TabHost活动
package com.myapp.appname;
import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.TabHost;
import android.widget.TextView;
import android.view.Window;
public class MainActivity extends TabActivity {
/** Called when the activity is first created. */
private TabHost tabHost;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(null);
setContentView(R.layout.main);
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.top_titlebar);
setTabs();
}
private void setTabs() {
tabHost = getTabHost();
listTab(R.string.tab_1, R.drawable.ic_tab_1);
cameraTab(R.string.tab_2, R.drawable.ic_tab_2);
list2Tab(R.string.tab_3, R.drawable.ic_tab_3);
viewTab(R.string.tab_4, R.drawable.ic_tab_4);
}
private void listTab(int labelId, int drawableId) {
Intent intent = new Intent(this,ListActivity.class);
TabHost.TabSpec spec = tabHost.newTabSpec("tab" + labelId);
View tabIndicator = LayoutInflater.from(this).inflate(R.layout.tab_indicator, getTabWidget(), false);
TextView title = (TextView) tabIndicator.findViewById(R.id.title);
title.setText(labelId);
ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);
icon.setImageResource(drawableId);
spec.setIndicator(tabIndicator);
spec.setContent(intent);
tabHost.addTab(spec);
}
private void cameraTab(int labelId, int drawableId) {
Intent intent = new Intent(this,CameraActivity.class);
TabHost.TabSpec spec = tabHost.newTabSpec("tab" + labelId);
View tabIndicator = LayoutInflater.from(this).inflate(R.layout.tab_indicator, getTabWidget(), false);
TextView title = (TextView) tabIndicator.findViewById(R.id.title);
title.setText(labelId);
ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);
icon.setImageResource(drawableId);
spec.setIndicator(tabIndicator);
spec.setContent(intent);
tabHost.addTab(spec);
}
private void list2Tab(int labelId, int drawableId) {
Intent intent = new Intent(this,List2Activity.class);
TabHost.TabSpec spec = tabHost.newTabSpec("tab" + labelId);
View tabIndicator = LayoutInflater.from(this).inflate(R.layout.tab_indicator, getTabWidget(), false);
TextView title = (TextView) tabIndicator.findViewById(R.id.title);
title.setText(labelId);
ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);
icon.setImageResource(drawableId);
spec.setIndicator(tabIndicator);
spec.setContent(intent);
tabHost.addTab(spec);
}
private void viewTab(int labelId, int drawableId) {
Intent intent = new Intent(this,ViewActivity.class);
TabHost.TabSpec spec = tabHost.newTabSpec("tab" + labelId);
View tabIndicator = LayoutInflater.from(this).inflate(R.layout.tab_indicator, getTabWidget(), false);
TextView title = (TextView) tabIndicator.findViewById(R.id.title);
title.setText(labelId);
ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);
icon.setImageResource(drawableId);
spec.setIndicator(tabIndicator);
spec.setContent(intent);
tabHost.addTab(spec);
}
}