如何使我的Android对话框全屏显示? [英] How can I make my android dialog fullscreen?

问题描述

我已经尝试了所有可以找到的东西(在stackoverflow和网络上)，但是我不知何故无法将对话框设置为全屏显示.它具有一个带有textview的scrollview，并且当textview中没有太多文本时，scrollview不会全屏显示.即使看不到太多文字，我怎么能将其强制为全屏显示?

I already tried all things I could find (on stackoverflow and the net) but I somehow cannot set my dialog to fullscreen. It has a scrollview with a textview in it, and when there is not much text in the textview the scrollview is not fullscreen. How can I force it to be fullscreen even when there is not much text visible ?

我这样创建对话框:

    final   TextView    box;
    final   Dialog      info    = new Dialog(cx);
    final   ScrollView  scroll;

    info.setContentView(R.layout.dialoginfo);
    info.setTitle("Info");
    info.setCancelable(true);
    info.getWindow().setFlags(LayoutParams.FLAG_FULLSCREEN, LayoutParams.FLAG_FULLSCREEN);

    scroll = ((ScrollView) info.findViewById(R.id.scrollviewinfo));
    scroll.setPersistentDrawingCache(ScrollView.PERSISTENT_NO_CACHE);
    scroll.setScrollbarFadingEnabled(false);
    box = (TextView) info.findViewById(R.id.infotext);
    box.setText(text);
    info.show();

这是xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:id="@+id/infolayout"
>

    <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/ImageView01"
        android:layout_weight="1.0"
        android:id="@+id/scrollviewinfo">

        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:id="@+id/infolayout2">

            <TextView   android:layout_margin="5dip" android:layout_width="fill_parent" android:layout_height="wrap_content"
                android:id="@+id/infotext"
                android:textSize="8sp" 
                android:text=""/>

        </LinearLayout>

    </ScrollView>


</LinearLayout>

推荐答案

看起来您的ScrollView的高度设置为wrap_content，我首先尝试将其替换为fill_parent.

It looks like your ScrollView has its height set to wrap_content, I'd first try replacing it with fill_parent.

还有其他一些资源可以帮助您:

Here are some other resources that may help you:

我如何得到一个对话框样式的活动窗口来填充屏幕?

我从未使用过setFlags()方法，因此这可能会为您提供相同的结果.基本上尝试更换

I've never used the setFlags() method, so this may give you the same results. Basically try replacing

info.getWindow().setFlags(LayoutParams.FLAG_FULLSCREEN, LayoutParams.FLAG_FULLSCREEN);

与

info.getWindow().setLayout(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);

或者，如果您想更精确地控制高度，则可以创建布局参数的实例，如此处的第一个答案所述:

Alternatively, if you wanted more exact control over the height, you can create an instance of layout params, as the first answer here describes:

如何制作警报对话框填充屏幕尺寸的90％?

如果要将其修改为比全屏略小，还可以使用此代码获取屏幕尺寸.

You can also use this code to get the screen size, if you wanted to modify it to be slightly smaller than full screen.

Display display = ((WindowManager) getSystemService(WINDOW_SERVICE)).getDefaultDisplay();
int width = display.getWidth();
int height = display.getHeight();

还有很多其他方法可以获取当前屏幕大小，这只是一个示例.祝你好运！

There are quite a few other ways to get the current screen size, too, this is just one example. Good luck!

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