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当您启动 android 应用程序时，主要活动以白色背景和黑色标题开始，您的应用程序名称位于左角。像这样

如何完全删除这个（当应用程序启动时不显示这个）并在屏幕上添加自定义加载进度条或一些标志？

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3 回答 3

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How about creating a splash dialog with custom layout containing progress bar?

In your main activity do something like this

private SplashDialog mSplashDialog;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    showSplashScreen();
    setContentView(R.layout.yourmainlayout);        
}

protected void removeSplashScreen() {
    if (mSplashDialog != null) {
        mSplashDialog.dismiss();
        mSplashDialog = null;
    }
}

protected void showSplashScreen() {
    mSplashDialog = new SplashDialog(this, R.style.splash_dialog);
    mSplashDialog.setCancelable(false);
    mSplashDialog.show();
}

Create custom dialog

public class SplashDialog extends Dialog {
    private ProgressBar mProgressBar;

    public SplashDialog(Context context, int theme) {
        super(context, theme);
        setContentView(R.layout.splash_dialog);
        mProgressBar = (ProgressBar) findViewById(R.id.splash_progress);
    }

    public void setProgress(int progress) {
        mProgressBar.setProgress(progress);
    }
}

And add style to that will let dialog fill all screen.

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="splash_dialog">
        <item name="android:padding">0dp</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowFrame">@null</item>
    </style>
</resources>

To change dialog's progress value call mSplashDialog.setProgress(int progress).

When your data is loaded call removeSplashScreen().

于 2013-01-12T18:15:21.697 回答
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对我有用的（因为我在开始时没有太多负载，实际上我根本不需要启动画面）正在更改 res/values/styles.xml ：

<resources>
<color name="custom_theme_color">#000000</color>
<style name="AppTheme" parent="android:Theme.Light" >
<item name="android:windowNoTitle">true</item>
<item name="android:windowBackground">@color/custom_theme_color</item>
</style>
</resources>

它只是从黑屏开始，当它全部加载时进入全屏（1-2 秒后）。看起来很“专业”。

于 2013-01-20T18:34:51.090 回答
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我想你要找的可以在这里找到：

如何更改启动画面

于 2013-01-17T15:31:58.490 回答