具有負偏移的RelativeLayout不起作用

Question

我在Android視圖上有3 x 3的地圖貼圖（圖像）網格。這些圖像是動態加載的，然後我想將相對佈局移動一定的數量（這將始終爲負數）。我可以在HTML中成功完成此操作，但是當我在Android的RelativeLayout上嘗試它時，它無法工作。

我使用以下，但它不工作的嘗試：

View view = this.findViewById(R.id.mapContrainer); 
RelativeLayout.LayoutParams head_params = (RelativeLayout.LayoutParams)view.getLayoutParams(); 
head_params.setMargins(leftOffset, topOffset, 0, 0); 
view.setLayoutParams(head_params); 

這裏是我的我的佈局：

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

<TextView 
     android:id="@+id/title" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Location" 
     android:paddingBottom="10dp" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

<TextView 
     android:id="@+id/address" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="current location" 
     android:paddingBottom="10dp" 
     android:textAppearance="?android:attr/textAppearanceMedium" /> 

<ZoomControls 
    android:id="@+id/zoomControls1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content"   
    android:layout_gravity="center"  
    /> 



<RelativeLayout 
    android:layout_width="match_parent" 
    android:layout_height="0dp" 
    android:layout_weight="1" 

    > 
    <ImageView 
     android:id="@+id/locationIcon" 
     android:layout_width="32dp" 
     android:layout_height="32dp"    
     android:scaleType="fitXY" 
     android:layout_centerInParent="true" 
     android:src="@drawable/ic_map_person" 

     /> 
<RelativeLayout 
    android:id="@+id/mapContrainer" 
    android:layout_width="768dp" 
    android:layout_height="768dp" 
    android:layout_marginRight="-400dp" 
    android:layout_marginBottom="-400dp"   
    > 

    <ImageView 
     android:id="@+id/mapImage1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:src="@drawable/ic_location_light" /> 

    <ImageView 
     android:id="@+id/mapImage2" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_toRightOf="@+id/mapImage1"   
     android:src="@drawable/ic_location_light" /> 

    <ImageView 
     android:id="@+id/mapImage3" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"   
     android:layout_toRightOf="@+id/mapImage2" 
     android:src="@drawable/ic_location_light" /> 

    <ImageView 
     android:id="@+id/mapImage4" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:src="@drawable/ic_location_light" 
     android:layout_below="@+id/mapImage1" 
     android:layout_alignLeft="@+id/mapImage1" 
    /> 
    <ImageView 
     android:id="@+id/mapImage5" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:src="@drawable/ic_location_light" 
     android:layout_below="@+id/mapImage1"   
     android:layout_toRightOf="@+id/mapImage4" 
    /> 
    <ImageView 
     android:id="@+id/mapImage6" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:src="@drawable/ic_location_light" 
     android:layout_below="@+id/mapImage1" 
     android:layout_toRightOf="@+id/mapImage5"   
    /> 

    <ImageView 
     android:id="@+id/mapImage7" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:src="@drawable/ic_location_light" 
     android:layout_below="@+id/mapImage4" 
     android:layout_alignLeft="@+id/mapImage1" 
    /> 
    <ImageView 
     android:id="@+id/mapImage8" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:src="@drawable/ic_location_light" 
     android:layout_below="@+id/mapImage4" 
     android:layout_toRightOf="@+id/mapImage7" 
    /> 
    <ImageView 
     android:id="@+id/mapImage9" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:src="@drawable/ic_location_light" 
     android:layout_below="@+id/mapImage4" 
     android:layout_toRightOf="@+id/mapImage8" 
    /> 
</RelativeLayout> 
</RelativeLayout> 

<include 
    android:layout_width="wrap_content" 
    android:layout_height="50dp" 
    android:layout_gravity="bottom|center_horizontal" 
    layout="@layout/menu_layout" /> 

</LinearLayout> 

Answer 1

你嘗試把requestLayout（）設置佈局PARAM後？