Android应用启动界面的两种实现方法

来源：互联网发布：去学校培训seo多少钱编辑：程序博客网时间：2024/06/07 18:58

一. 利用两个activity间的跳转实现

MainActivity.java

public class MainActivity extends AppCompatActivity {    private final long SPLASH_LENGTH = 3000;    Handler handler = new Handler();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        handler.postDelayed(new Runnable() {  //使用handler的postDelayed实现延时跳转            public void run() {                Intent intent = new Intent(MainActivity.this, splash.class);                startActivity(intent);                finish();            }        }, SPLASH_LENGTH);//3秒后跳转至应用主界面MainActivity    }}

二. 将启动页面和主页面都放到了一个Activity中去完成，然后使用ViewFilpper去进行切换

MainActivity.java

public class MainActivity extends AppCompatActivity {    private ViewFlipper allFlipper;    private Handler handler = new Handler(){        @Override        public void handleMessage(Message msg) {            // TODO Auto-generated method stub            switch (msg.what) {                case 1:                    //切换到主页面                    allFlipper.setDisplayedChild(1);                    break;            }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        allFlipper = (ViewFlipper) findViewById(R.id.allFlipper);        new Handler().postDelayed(new Runnable() {            @Override            public void run() {                handler.sendEmptyMessage(1); //给UI主线程发送消息            }        }, 3000); //启动等待3秒钟    }}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?><ViewFlipper xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/allFlipper"    android:layout_width="fill_parent"    android:layout_height="fill_parent" >    <!-- 启动等待界面 -->    <RelativeLayout        android:id="@+id/splashLayout"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:background="@drawable/sb" >    </RelativeLayout>    <!-- 主界面 -->    <RelativeLayout        android:id="@+id/homeLayout"        android:layout_width="fill_parent"        android:layout_height="wrap_content" >        <TextView            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:text="@string/hello" />    </RelativeLayout></ViewFlipper>

0 0