tabHost的简单使用以及registerReceiver和Handler的使用
| 阿里云国内75折 回扣 微信号：monov8 |
| 阿里云国际，腾讯云国际，低至75折。AWS 93折 免费开户实名账号 代冲值 优惠多多 微信号：monov8 飞机：@monov6 |
tabHost有点像listView 也有TabActivity或者activity发动
那么看一下Activity发动
class SelfContainedTabHost extends ActivitysetContentView(R.layout.tabhost_container);
TabHost tabs = (TabHost)this.findViewById(R.id.tabhost);
tabs.setup();
tabs.addTab(tabs.newTabSpec("one").setContent(R.id.tab1content).setIndicator("TAB 1"));
tabs.addTab(tabs.newTabSpec("two").setContent(R.id.tab2content).setIndicator("TAB 2"));
tabs.setCurrentTab(0);前两部是必须的，在xml中也需要一个
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="60px"
android:paddingBottom="10dip"/>
注意他的id android:id/tabs。
整个xml为
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TabHost
android:id="@+id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="60px"
android:paddingBottom="10dip"/>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingTop="60px">
<LinearLayout
android:id="@+id/tab1content"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#00008B">
<!-- Put Tab 1 Views in here -->
</LinearLayout>
<LinearLayout
android:id="@+id/tab2content"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#FFFF00">
<!-- Put Tab 2 Views in here -->
</LinearLayout>
</FrameLayout>
</TabHost>
</LinearLayout>
2.tabActivity
public class Container extends TabActivity{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
host = getTabHost();
Intent intent = new Intent(this, Tab1Activity.class);
host.addTab(host.newTabSpec("one").setIndicator("TAB1").setContent(intent));
intent = new Intent(this, Tab2Activity.class);
host.addTab(host.newTabSpec("two").setIndicator("TAB2").setContent(intent));
}
@Override
protected void onResume() {
super.onResume();
receiver = new TabChangeReceiver();
registerReceiver(receiver, new IntentFilter("com.novoda.TAB"), null, mHandler);
}
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(receiver);
};
protected Handler mHandler = new Handler() {
@Override public void handleMessage(Message msg) {
switch (msg.what) {
case SWITCH_TAB:
Log.i("handler", "using the handler");
host.setCurrentTab(msg.arg1);
break;
}
}
};
public class TabChangeReceiver extends android.content.BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
int intExtra = intent.getIntExtra("tab", 0);
Log.i(TabChangeReceiver.class.getSimpleName(), "Recieved broadcast with extra=[" + intExtra + "]");
mHandler.sendMessage(mHandler.obtainMessage(SWITCH_TAB, intExtra, 0));
}
}
private TabHost host;
public static final int SWITCH_TAB = 2545;
protected static TabChangeReceiver receiver;
}
public class Tab1Activity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tab1);
findViewById(R.id.tab1button).setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent("com.novoda.TAB");
intent.putExtra("tab", 1);
sendBroadcast(intent);
}
});
}
}
| 阿里云国内75折 回扣 微信号：monov8 |
| 阿里云国际，腾讯云国际，低至75折。AWS 93折 免费开户实名账号 代冲值 优惠多多 微信号：monov8 飞机：@monov6 |