小编Muk*_*ngh的帖子

我在android中有一个没有的应用程序.的活动.现在我需要非活动类中当前正在运行的活动的上下文.我怎么能得到它.

Android视频在纵向时不适合视频的宽度,如何在纵向时使我的视频宽度适合我的视频宽度,当我将屏幕的方向更改为横向时我想要视频填充整个屏幕就像youtube应用程序一样.当在纵向时,视频将从屏幕的顶部到中间开始,并且在横向时用于填充整个屏幕.这是我尝试过的,我还添加了完整截图的链接

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="vertical"
  android:weightSum="100" >

<VideoView
    android:id="@+id/videoview"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_gravity="center"
    android:layout_weight="53" >
</VideoView>

<LinearLayout
    android:id="@+id/linearLayout"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="7"
    android:background="@drawable/top_bar"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/settings"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/set"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/settings" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/low_tab"
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/low"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/low" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/high_tab"
        android:layout_width="80dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/high"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/high" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/audio_tab"
        android:layout_width="70dp" …

我正在为MAC OS开发一个SWT java项目,我需要在SWT UI上添加一个标签,我必须显示当前时间,每秒更新一次.我试过了,即

final Label lblNewLabel_1 = new Label(composite, SWT.CENTER);
FormData fd_lblNewLabel_1 = new FormData();
fd_lblNewLabel_1.left = new FormAttachment(btnNewButton_call, 10);
fd_lblNewLabel_1.bottom = new FormAttachment(100, -10);
fd_lblNewLabel_1.right = new FormAttachment(btnTransfer, -10);
fd_lblNewLabel_1.height = 20;
lblNewLabel_1.setLayoutData(fd_lblNewLabel_1);
    getDisplay().syncExec(new Runnable() {

            @Override
            public void run() {
                while(true){
                    lblNewLabel_1.setText(Calendar.getInstance().getTime().toString());

                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                }   
            }
        });

但它不起作用,请帮助我这样做.提前致谢.