1.仿微信--開屏頁(SplashActivity)
阿新 • • 發佈:2019-02-15
這裡實現簡單功能:開始顯示一張圖片,2秒後跳轉到主介面。
1.佈局檔案:activity_splash.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/splash_root" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/login_app" android:orientation="vertical" > <ImageView android:layout_width="match_parent" android:layout_height="match_parent" android:scaleType="fitXY" android:src="@drawable/login_app" /> </LinearLayout>
2.開屏介面實現:SplashActivity.java
import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; /** * 開屏頁 * */ public class SplashActivity extends Activity { private static final int sleepTime = 2000; @Override protected void onCreate(Bundle arg0) { final View view = View.inflate(this, R.layout.activity_splash, null); setContentView(view); super.onCreate(arg0); } @Override protected void onStart() { super.onStart(); new Thread(new Runnable() { public void run() { long start = System.currentTimeMillis(); long costTime = System.currentTimeMillis() - start; //等待sleeptime時長 if (sleepTime - costTime > 0) { try { Thread.sleep(sleepTime - costTime); } catch (InterruptedException e) { e.printStackTrace(); } } //進入主頁面 startActivity(new Intent(SplashActivity.this, MainActivity.class)); finish(); } }).start(); } }
3.新建MainActivity.java(暫時未實現相關功能)
import android.app.Activity; import android.os.Bundle; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } }
4.MainActivity的佈局檔案(暫時未實現相關功能):activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.th.myphone.MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
</RelativeLayout>
5.AndroidManifest.xml
<activity
android:name=".SplashActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"/>
注意:裡邊使用的相關圖片可自行更換。