android程序启动画面Splash(方法二)

2009年09月17日 | 10:20 上午分类：android | 标签：android splash、splash效果、启动画面 | 被浏览733次

上一篇文章说了第一种方法。1、使用两个Activity，程序启动时候load第一张Activity，然后由tick触发N秒钟后startActivity另外一张Activity。
2、使用一个Activity，可以用到View.gone() 这个方法。把Acitivity的某些元素移除。代码如下：

androidmanifest.xml就不多说了。先看布局代码：

<?xml version=”1.0″ encoding=”utf-8″?>
<LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android”
android:orientation=”vertical”
android:layout_width=”fill_parent”
android:layout_height=”fill_parent”>
     <LinearLayout android:id=”@+id/splashscreen” android:orientation=”vertical”
          android:layout_width=”fill_parent” android:layout_height=”fill_parent”>
          <ImageView android:layout_width=”wrap_content”
               android:layout_height=”wrap_content” android:src=”@drawable/splash”
               android:layout_gravity=”center”
               android:layout_marginTop=”130px”/>
          <TextView
               android:id=”@+id/info”
               android:layout_width=”fill_parent”
               android:layout_height=”wrap_content”
               android:gravity=”center”
               android:paddingTop=”10px”
               android:text=”This is a splash!!”/>
     </LinearLayout>
<WebView android:id=”@+id/browser”
  android:layout_width=”fill_parent”
  android:layout_height=”fill_parent” android:layout_weight=”1″/>
</LinearLayout>

有一个id为splashscreen 的linearlayout，是程序启动时显现的部分。id为browser是程序的主界面显示部分。

package net.hlovey.s;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
public class WebGameActivity extends Activity {
private WebView webView;
private Handler mHandler = new Handler();
private static final String TAG = "WebGameActivity";
//菜单
private static final int MENU_RELOAD = Menu.FIRST;
private static final int MENU_HELP = Menu.FIRST + 1;
private static final int MENU_ABOUT = Menu.FIRST + 2;
private static final int MENU_CLOSE = Menu.FIRST + 3;
private int staus = 0;
private static final int STOPSPLASH = 0;
//time in milliseconds
private static final long SPLASHTIME = 1000;
private LinearLayout splash;
private TextView tv;
private Animation myAnimation_Alpha;
private Animation animatinoGone ;
private Handler splashHandler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case STOPSPLASH:
if( staus == 1 ){
splash.startAnimation(animatinoGone);
splash.setVisibility(View.GONE);
break;
}
sendEmptyMessageDelayed(STOPSPLASH, SPLASHTIME);
}
super.handleMessage(msg);
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_PROGRESS); //去标题栏
setContentView(R.layout.main);
animatinoGone = AnimationUtils.loadAnimation(this,R.anim.alpha_gone); //动画效果
myAnimation_Alpha = AnimationUtils.loadAnimation(this,R.anim.alpha_action); //动画效果
splash = (LinearLayout) findViewById(R.id.splashscreen);
tv = (TextView) findViewById(R.id.info);
tv.setText("正在建立数据连接");
splash.startAnimation(myAnimation_Alpha);
Message msg = new Message();
msg.what = STOPSPLASH;
splashHandler.sendMessageDelayed(msg, SPLASHTIME);
}