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我正在开发一个 android 应用程序，当它加载应用程序时，我只有一个黑屏（直到应用程序站稳脚跟）。当 Emulator/Android Mobile 上出现黑屏时，我想显示全屏图像。查看其他应用程序，他们有一个公司徽标或弹出几秒钟的酷图片，有人可以告诉我该怎么做吗？

我使用这段代码：

public class SplashScreen extends Activity {
    /**
     * The thread to process splash screen events
     */
    private Thread mSplashThread;    

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // Splash screen view
        setContentView(R.layout.activity_splash_screen);

        final SplashScreen sPlashScreen = this;   

        // The thread to wait for splash screen events
        mSplashThread =  new Thread(){
            @Override
            public void run(){
                try {
                    synchronized(this){
                        // Wait given period of time or exit on touch
                        wait(3000);
                    }
                }
                catch(InterruptedException ex){                    
                }

                finish();

                // Run next activity
                Intent intent = new Intent();
                intent.setClass(sPlashScreen, HomePage.class);
                startActivity(intent);

            }
        };

        mSplashThread.start();        
    }

    /**
     * Processes splash screen touch events
     */
    @Override
    public boolean onTouchEvent(MotionEvent evt) {
        if(evt.getAction() == MotionEvent.ACTION_DOWN) {
            synchronized(mSplashThread){
                mSplashThread.notifyAll();
            }
        }
        return true;
    }    
}
4

2 回答 2

4

为此，您必须设置启动画面...您也可以像这样设置启动画面：

public class MainActivity extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.splashscreen);
        Handler handler = new Handler();
        handler.postDelayed(new Runnable() {

            public void run() {
                // TODO Auto-generated method stub
                finish();
                Intent menu = new Intent(getBaseContext(), MainMenu.class);
                startActivity(menu);
            }
        }, 3000);
    }
}

它将设置启动屏幕仅 3 秒，然后您的 Main 类将被显示...启动屏幕的 XML 是这样的：

<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:background="@drawable/splash_screen">
</RelativeLayout>

希望对你有帮助...

于 2013-04-12T06:10:46.867 回答
0

它被称为启动画面

检查此代码：

public class SplashScreen extends Activity {

    /**
     * The thread to process splash screen events
     */
    private Thread mSplashThread;    

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Splash screen view
        setContentView(R.layout.splash);

        final SplashScreen sPlashScreen = this;   

        // The thread to wait for splash screen events
        mSplashThread =  new Thread(){
            @Override
            public void run(){
                try {
                    synchronized(this){
                        // Wait given period of time or exit on touch
                        wait(5000);
                    }
                }
                catch(InterruptedException ex){                    
                }

                finish();

                // Run next activity
                Intent intent = new Intent();
                intent.setClass(sPlashScreen, MainActivity.class);
                startActivity(intent);
                stop();                    
            }
        };

        mSplashThread.start();        
    }

    /**
     * Processes splash screen touch events
     */
    @Override
    public boolean onTouchEvent(MotionEvent evt)
    {
        if(evt.getAction() == MotionEvent.ACTION_DOWN)
        {
            synchronized(mSplashThread){
                mSplashThread.notifyAll();
            }
        }
        return true;
    }    
}

你的布局文件：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" 
  android:id="@+id/TheSplashLayout"
  android:layout_gravity="center"
  >
    <ImageView 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:id="@+id/SplashImageView"
        android:layout_gravity="center"        
        android:src="@drawable/lnxins"        
        >
    </ImageView>
</LinearLayout>

查看本教程以获取更多详细信息

于 2013-04-12T05:01:04.227 回答