【问题标题】:How do I show a splash screen in Android?如何在 Android 中显示启动画面?
【发布时间】:2014-03-24 01:17:13
【问题描述】:

我想在我的应用加载时显示启动画面,这是我的Java 代码:

ImageView splash = (ImageView) this.findViewById(R.id.splashscreen);

splash.postDelayed(new Runnable(){
    splash.setVisibility(View.GONE);
}, 3000);

但我在postDelayed() 调用中收到错误“无法解析符号”。我也得到 "unexpected token" for

}, 3000);

最后,这是我的布局:

<TextView
    android:text="@string/hello_world"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

<ImageView
    android:id="@+id/splashscreen"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:src="@drawable/splash"
    android:layout_gravity="center"/> 

Logcat:

9:41:01 PM Throwable
       Read access is allowed from event dispatch thread or inside read-action only (see com.intellij.openapi.application.Application.runReadAction())
       Details: Current thread: Thread[ApplicationImpl pooled thread 239,4,main] 359404630
       Our dispatch thread:Thread[AWT-EventQueue-0 0.4.2#AI-133.970939, eap:true,6,main] 1198871553
       SystemEventQueueThread: Thread[AWT-EventQueue-0 0.4.2#AI-133.970939, eap:true,6,main] 1198871553

9:41:13 PM 编译在 12 秒内成功完成

清单文件:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.conversation" >

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.conversation.splash"
        android:configChanges="orientation|keyboardHidden|screenSize"
        android:theme="@android:style/Theme.NoTitleBar" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

【问题讨论】:

    标签: java android splash-screen


    【解决方案1】:

    你可以这样做:

    private static final int SPLASH_TIME_OUT = 2000;
    private static final Handler mHandler = new Handler();
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_splash);
    
        mHandler.postDelayed(new Runnable() {
    
            @Override
            public void run() {
    
                    startActivity(new Intent(getApplicationContext(), YourActivity.class)); 
                    finish();   
            }
        }, SPLASH_TIME_OUT);    
    }
    

    这里activity_splash.xml 是您的splash Activity 布局,YourActivity 是您接下来要进行的Activity

    【讨论】:

      【解决方案2】:
      private ImageView splash;
      
      
      splash = (ImageView)findViewById(R.id.splashscreen);
      new Handler().postDelayed(new Runnable(){
          @Override
      public void run() {
              splash.setVisibility(View.GONE);
          }
      }, 3000);
      

      试试这个。

      【讨论】:

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