我需要更改已设置的TabHosts图标的大小。
此刻,图标是条形图的高度,并且看起来非常恐怖,因为图标在条形图内很大:
我有什么办法可以缩小TabHost内部的图像尺寸吗?
主要活动:
public class MainActivity extends FragmentActivity {
/* Tab identifiers */
private final String TAB_A = "Appointments";
private final String TAB_B = "Calender";
private final String TAB_C = "Profile";
private final String TAB_D = "Settings";
private String selectedTab;
private static TabHost mTabHost;
private Fragment1 fragment1;
private Fragment2 fragment2;
private Fragment3 fragment3;
private Fragment4 fragment4;
@Override
protected void onCreate(Bundle savedInstanceState) {
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
fragment1 = new Fragment1();
fragment2 = new Fragment2();
fragment3 = new Fragment3();
fragment4 = new Fragment4();
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setOnTabChangedListener(listener);
mTabHost.setup();
initializeTab();
}
// TABS
public void initializeTab() {
TabHost.TabSpec spec = mTabHost.newTabSpec(TAB_A);
mTabHost.setCurrentTab(0);
spec.setContent(new TabHost.TabContentFactory() {
public View createTabContent(String tag) {
return findViewById(android.R.id.tabcontent);
}
});
spec.setIndicator(createTabView(TAB_A, R.drawable.tab1_selector));
mTabHost.addTab(spec);
spec = mTabHost.newTabSpec(TAB_B);
spec.setContent(new TabHost.TabContentFactory() {
public View createTabContent(String tag) {
return findViewById(android.R.id.tabcontent);
}
});
spec.setIndicator(createTabView(TAB_B, R.drawable.tab2_selector));
mTabHost.addTab(spec);
spec = mTabHost.newTabSpec(TAB_C);
spec.setContent(new TabHost.TabContentFactory() {
public View createTabContent(String tag) {
return findViewById(android.R.id.tabcontent);
}
});
spec.setIndicator(createTabView(TAB_C, R.drawable.tab3_selector));
mTabHost.addTab(spec);
spec = mTabHost.newTabSpec(TAB_D);
spec.setContent(new TabHost.TabContentFactory() {
public View createTabContent(String tag) {
return findViewById(android.R.id.tabcontent);
}
});
spec.setIndicator(createTabView(TAB_D, R.drawable.tab4_selector));
mTabHost.addTab(spec);
mTabHost.setCurrentTab(0);
}
TabHost.OnTabChangeListener listener = new TabHost.OnTabChangeListener() {
public void onTabChanged(String tabId) {
/* Set current tab.. */
if (tabId.equals(TAB_A)) {
pushFragments(tabId, fragment1);
selectedTab = TAB_A;
} else if (tabId.equals(TAB_B)) {
pushFragments(tabId, fragment2);
selectedTab = TAB_B;
} else if (tabId.equals(TAB_C)) {
pushFragments(tabId, fragment3);
selectedTab = TAB_C;
} else if (tabId.equals(TAB_D)) {
pushFragments(tabId, fragment4);
selectedTab = TAB_D;
}
}
};
public void pushFragments(String tag, Fragment fragment) {
FragmentManager manager = getSupportFragmentManager();
FragmentTransaction ft = manager.beginTransaction();
ft.replace(android.R.id.tabcontent, fragment);
ft.commit();
}
private View createTabView(final String tabText, final int id) {
View view = LayoutInflater.from(this).inflate(R.layout.tabs_icon, null);
ImageView imageViewTabIcon = (ImageView) view
.findViewById(R.id.tab_icon);
imageViewTabIcon.setImageDrawable(getResources().getDrawable(id));
return view;
}
public static void tabfresh() {
mTabHost.setCurrentTab(0);
}
public static void tabfresh_sal() {
mTabHost.setCurrentTab(1);
}
}
最佳答案
您需要创建tabhost_row.xml
以便对其进行充气。
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:background="@color/white"
android:orientation="vertical" >
<ImageView
android:id="@+id/imgTab"
android:layout_width="YOUR_WIDTH"
android:layout_height="YOUR_HEIGHT" />
</FrameLayout>
注意:对于上述
ImageView
,请根据您的要求设置高度和宽度。然后在您的
MainActivity.java
中,按以下代码充气tabhost_row.xml
。public TabSpec setIndicator(Context ctx,TabSpec spec,int viewId,int resId,String name) {
View v = LayoutInflater.from(ctx).inflate(R.layout.tab_row, null);
ImageView imgTab = (ImageView) v.findViewById(viewId);
imgTab.setImageDrawable(getResources().getDrawable(resId));
return spec.setIndicator(v);
}
现在,如下添加您的标签,
mTabHost.addTab(setIndicator(this,mTabHost.newTabSpec(Commons.TAG_HOME_CONTAINER_FRAGMENT),R.id.imgTab,R.drawable.home_selector,"Home"),HomeContainerFragment.class,null);