我在一个Android Wear项目中实现了onApplyWindowInsets回调。在该方法中,它调用isRound()来确定代码是在圆形还是矩形Wear智能手表上运行。此回调是从圆形磨损仿真器调用的。(尽管isRound()返回false,但这是错误的。)但问题是,我的Samsung Gear Live从未调用过onApplyWindowInsets回调。因此,如果从onApplyWindowInsets放大视图,则视图不会被放大。有没有人让onApplyWindowInsets在真实的设备上运行?看起来这是不能保证的。如果是这样,那么如何根据屏幕类型放大不同的视图?
发布于 2014-08-30 00:43:19
在您的布局中,您可以为圆形/矩形屏幕设置特定的“子”布局:
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.wearable.view.WatchViewStub
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/stub"
app:rectLayout="@layout/rect_layout"
app:roundLayout="@layout/round_layout"/>
</FrameLayout>如果您对rect_layout和round_layout使用不同的it,您可以在onCreate上查看,如下所示:
@Override
public void onCreate(Bundle b) {
super.onCreate(b);
setContentView(R.layout.main_activity);
WatchViewStub stub = (WatchViewStub) findViewById(R.id.stub);
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
@Override
public void onLayoutInflated(WatchViewStub stub) {
mRectBackground = (RelativeLayout) findViewById(R.id.rect_layout);
mRoundBackground = (RelativeLayout) findViewById(R.id.round_layout);
}
});
}mRectBackground或mRoundBackground不能同时为null和null。文档地址:https://developer.android.com/training/wearables/apps/layouts.html#UiLibrary
其他人尝试使用如下所示的使用setOnApplyWindowInsetsListener的策略:https://github.com/xamarin/monodroid-samples/blob/master/wear/GridViewPager/GridViewPager/MainActivity.cs。这对我不起作用。
发布于 2014-10-09 22:41:01
onApplyWindowInsets实际上要求开发人员在监听器中调用WatchViewStub的onApplyWindowInsets方法。例如:
WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
stub.setOnApplyWindowInsetsListener(new View.OnApplyWindowInsetsListener() {
@Override
public WindowInsets onApplyWindowInsets(View view, WindowInsets windowInsets) {
//////////////////////////////////////////////////
// IMPORTANT - the following line is required
stub.onApplyWindowInsets(windowInsets);
// Set the instance variable to say whether this is round...
mIsRound = windowInsets.isRound();
return windowInsets;
}
});虽然乍一看可能不直观,但这允许开发人员根据自己的选择覆盖默认的onApplyWindowInsets实现。
View.OnApplyWindowInsetsListener的文档声明:“侦听器可以选择性地调用参数视图的onApplyWindowInsets方法,以将视图的正常行为作为其自身行为的一部分。”
发布于 2014-09-02 05:55:28
谢谢你艾德!你的巧妙技巧似乎解决了这个问题。(我说“似乎”,因为只有在将mRoundBackground设置为非空值的真实圆形设备上测试代码后,我才能确定。)
现在有三个Android Wear形状(矩形/正方形,圆形/下巴和全圆形),我添加了两个全局值来查找屏幕形状,然后修改了回调,如下所示:
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
@Override
public void onLayoutInflated(WatchViewStub stub) {
//mRectBackground = (RelativeLayout) findViewById(R.id.LinearLayout1);
mRoundBackground = (RelativeLayout) findViewById(R.id.LinearLayout2);
if (mRoundBackground != null) round = true;
else round = false;
WindowManager window = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
Display display = window.getDefaultDisplay();
//Added android.graphics.Point to imports for this next section
Point point = new Point (0,0);
display.getSize(point);
scrnHeight = point.y;
scrnWidth = point.x;
if (round && scrnWidth == scrnHeight) chin = false;
else chin = true;
//round = true; //For testing on the emulator!!!!!!
}
});有没有人知道更好的检测Moto360下巴的方法?
更新:刚在Moto360上运行了这段代码,这项技术没有检测到圆屏。所以现在我只是检测高度是否等于宽度。但是,当更多的Android Wear设备问世时,这是一种糟糕的技术。因此,问题仍然存在,人们如何在真正的Android Wear设备上确定圆形屏幕?
https://stackoverflow.com/questions/25495005
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