how to use z-index in android

问题

  <LinearLayout 
    android:orientation="vertical"
    android:layout_width="300dp"
    android:layout_height="50dp">
  <ImageView android:layout_height="40dp" android:id="@+id/imageView1" 
   android:background="@drawable/nicetab" 
   android:layout_width="300dp" ></ImageView>
    <TextView
        style="@style/DialogText.Title"
        android:id="@+id/title"
        android:paddingBottom="10dip"
        android:paddingLeft="45dip"
        android:paddingTop="7dip"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="@color/codeFont" 
        android:textSize="15dip"
        />
</LinearLayout>

How could I put TextView on ImageView. Is there any way in android to do this, in HTML it is too easy we ara using z-index, but here - no idea

回答1:

A very simple way would be to use a RelativeLayout

<RelativeLayout 
    android:orientation="vertical"
    android:layout_width="300dp"
    android:layout_height="50dp" >
    <ImageView
        android:layout_height="40dp"
        android:id="@+id/imageView1"
        android:background="@drawable/nicetab"
        android:layout_width="300dp" />
    <TextView
        style="@style/DialogText.Title"
        android:id="@+id/title"
        android:paddingBottom="10dip"
        android:paddingLeft="45dip"
        android:paddingTop="7dip"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="@color/codeFont" 
        android:textSize="15dip" />
</RelativeLayout>

回答2:

The suggested way to do the text view on top of an image view is to use the textview's drawable.

android:drawable[Top|Left|Right|Bottom]="@your_drawable_here"

<TextView
    style="@style/DialogText.Title"
    android:id="@+id/title"
    android:paddingBottom="10dip"
    android:paddingLeft="45dip"
    android:paddingTop="7dip"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textColor="@color/codeFont" 
    android:drawableTop="@drawable/your_drawable_from_imageview" 
    android:textSize="15dip" />

I'm not sure what you have in your style, so if what is given above doesn't work, try removing the style, or paste the style here, and I'll help you out.

来源：https://stackoverflow.com/questions/8079500/how-to-use-z-index-in-android

标签

android

android-layout