我在相对布局中创建了一个自定义视图。
我可以通过xml在中心/左/右对齐,但不能 编程
自定义视图
public class HotspotView extends RelativeLayout {
public HotspotView(Context context) {
super(context);
init(context);
}
public HotspotView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public HotspotView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context);
}
private void init(Context context) {
LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.hotspot_view, this);
}
}
自定义视图xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/hotspot_imageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/tohome"
/>
</RelativeLayout>
活动xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/rl"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/black"
>
<VideoView
android:id="@+id/vv_frame"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerInParent="true"
android:clickable="true"
android:onClick="onclick"
android:visibility="gone" />
<ImageView
android:id="@+id/iv_frame"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:adjustViewBounds="true"
android:contentDescription="@string/content_description"
android:onClick="onclick"
android:scaleType="fitXY"
android:visibility="gone"
/>
<ImageView
android:id="@+id/lv_frame"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerInParent="true"
android:contentDescription="@string/content_description"
android:onClick="onclick"
android:visibility="gone" />
<
<android.gesture.GestureOverlayView
android:id="@+id/gesture_area"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1.0"
android:alpha="1.0"
android:background="@android:color/transparent"
android:gestureColor="@android:color/white"
android:onClick="onclick"
android:visibility="visible" />
<WebView
android:id="@+id/ticker_webview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:visibility="gone"></WebView>
<WebView
android:id="@+id/wv_frame"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerInParent="true"
android:adjustViewBounds="true"
android:onClick="onclick"
android:scaleType="fitXY"
android:visibility="gone"
/>
<ProgressBar
android:id="@+id/webview_progressBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_gravity="center"
android:visibility="gone" />
<com.devstring.imageframe.views.HotspotView
android:id="@+id/hotspot"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
android:visibility="visible" />
</RelativeLayout>
代码:
RelativeLayout.LayoutParams lp = new
RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.MATCH_PARENT);
lp.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
ImageFrameActivity.hotspotView.setLayoutParams(lp);
ImageFrameActivity.hotspotView.setVisibility(View.VISIBLE);
我遇到了各种类似的问题,但我无法解决问题。
答案 0 :(得分:1)
试试这个:
RelativeLayout.LayoutParams lp =
(RelativeLayout.LayoutParams) ImageFrameActivity.hotspotView.getLayoutParams();
lp.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
ImageFrameActivity.hotspotView.setLayoutParams(lp);
答案 1 :(得分:0)
尝试使用
lp.gravity = Gravity.LEFT;