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Positioning an image inside an ImageView with gravity: top

      ╔════════════════════════════════════════════════════════╗
      ║               Linear Layout  (Center)                  ║
      ║    ╔══════════════════════════════════════════════╗    ║   
      ║    ║ ImageView    ╔══════════════╗                ║    ║
      ║    ║              ║              ║    (Center)    ║    ║
      ║    ║              ║ Actual image ║                ║    ║
      ║    ║              ║              ║                ║    ║
      ║    ║              ║  (Center)    ║                ║    ║
      ║    ║              ║              ║                ║    ║
      ║    ║              ╚══════════════╝                ║    ║
      ║    ╚══════════════════════════════════════════════╝    ║ 
      ║                                                        ║
      ╚════════════════════════════════════════════════════════╝

And I want to do this:

      ╔════════════════════════════════════════════════════════╗
      ║               Linear Layout  (Center)                  ║
      ║    ╔══════════════════════════════════════════════╗    ║   
      ║    ║ ImageView    ║              ║                ║    ║
      ║    ║              ║              ║    (Center)    ║    ║
      ║    ║              ║ Actual image ║                ║    ║
      ║    ║              ║              ║                ║    ║
      ║    ║              ║  (Top)       ║                ║    ║
      ║    ║              ║              ║                ║    ║
      ║    ║              ╚══════════════╝                ║    ║
      ║    ╚══════════════════════════════════════════════╝    ║ 
      ║                                                        ║
      ╚════════════════════════════════════════════════════════╝

Note that : imageview has gravity center with Linear Layout I want the image in the imageview has gravity top, i try to set gravity:top, but nothing change. Help me

Edit: this is my xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:background="@color/all_white">
    <LinearLayout android:id="@+id/title_bar" style="@style/TitleBar">
        <TextView android:layout_width="wrap_content" 
            android:id="@+id/tv_printweb"
            android:singleLine="true" 
            android:ellipsize="end" 
            style="@style/ScreenTitleText" />
    </LinearLayout>
    <RelativeLayout android:orientation="vertical"
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent"
        android:layout_below="@+id/tv_web_filename" 
        android:layout_above="@+id/tv_web_page_num"
        android:layout_weight="1" 
        android:background="@color/background">
        <LinearLayout android:id="@+id/ln_web_pre"
            android:layout_width="30dp" 
            android:layout_height="fill_parent"
            android:layout_alignParentLeft="true" 
            android:gravity="center">
            <Button android:id="@+id/btn_web_pre" 
                android:layout_width="40dp"
                android:layout_height="120dp" 
                android:background="@drawable/bt_left"
                />
        </LinearLayout>
        <LinearLayout android:id="@+id/ln_web_zoomview"
            android:layout_width="fill_parent" 
            android:layout_height="fill_parent"
            android:background="@color/all_white" 
            android:orientation="vertical"
            android:gravity="center" 
            android:layout_centerInParent="true">
            <ImageView android:id="@+id/web_zoomview"
                android:layout_width="fill_parent" 
                android:layout_height="wrap_content"
                android:background="@color/all_white" 
                android:layout_gravity="top"
                />

        </LinearLayout>
        <LinearLayout android:id="@+id/llCircle"
                android:layout_height="fill_parent" 
                android:layout_width="fill_parent"
                android:layout_marginRight="40dp" 
                android:layout_marginLeft="40dp" 
                android:layout_marginBottom="25dp" 
                android:layout_marginTop="25dp">
        </LinearLayout>
        <LinearLayout android:id="@+id/ln_web_next"
            android:layout_width="30dp" 
            android:layout_height="fill_parent"
            android:layout_alignParentRight="true" 
            android:gravity="center">
            <Button android:id="@+id/btn_web_next" 
                android:layout_width="40dp"
                android:layout_height="120dp" 
                android:background="@drawable/bt_right_1"
                />
        </LinearLayout>
        <RelativeLayout android:id="@+id/pagebar_web_top"
            android:layout_width="fill_parent" 
            android:layout_height="30dp"
            android:layout_alignParentTop="true" 
            an开发者_如何转开发droid:gravity="center_vertical"
            android:paddingLeft="10dip" 
            android:paddingRight="10dip">
            <TextView android:id="@+id/tv_web_page_size"
                android:layout_width="wrap_content" 
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true" 
                android:gravity="center"
                android:text="Paper Size" 
                android:textColor="@color/all_black"
                android:textStyle="bold" 
                android:background="@drawable/paper_border" />
        </RelativeLayout>

        <RelativeLayout android:id="@+id/web_pagebar"
            android:layout_width="fill_parent" 
            android:layout_height="50dp"
            android:layout_alignParentBottom="true" 
            android:gravity="left"
            android:paddingLeft="10dip" 
            android:paddingRight="10dip">
            <TextView android:id="@+id/tv_page_num"
                android:layout_width="wrap_content" 
                android:layout_height="wrap_content"
                android:layout_centerVertical="true" 
                android:gravity="center"
                android:text="1/1" 
                android:textColor="@color/all_black"
                android:textStyle="bold" 
                android:background="@drawable/paper_border" />
            <Button android:id="@+id/btn_web_orientation"
                android:layout_width="50dp" 
                android:layout_height="50dp"
                android:layout_alignParentRight="true" 
                android:background="@drawable/rotate_l" />
        </RelativeLayout>

    </RelativeLayout>
    <LinearLayout android:gravity="right|center_horizontal"
        android:id="@+id/toolbar" 
        style="@style/FunctionBar">
        <Button android:layout_width="wrap_content"
            android:layout_height="wrap_content" 
            android:id="@+id/btn_web_print"
            style="@style/FunctionButton" 
            android:text="@string/str_print" />
    </LinearLayout>
</LinearLayout>


Set the scaleType to fitStart in your XML:

<ImageView
    android:id="@+id/ivMap"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scaleType="fitStart" >
</ImageView>


You can use ImageView.ScaleType.MATRIX and set image matrix using ImageView.setImageMatrix(). Matrix can be obtained using Matrix.setRectToRect() method.


Please check Terel's answer, which is said to be the correct answer.

Depending on what else is in the layout, a solution could be to use another layout (i.e. a FrameLayout which is rather light) in place of the ImageView, and have the ImageView in place of the actual image, with its android:layout_gravity="top".


Have you tried using the attribute android:gravity = "top" I see that for your ImageView you are using android:layout_gravity maybe you could try using the other one. As far as I know, the "android:layout_gravity" attribute is used for setting the gravity of the element within its parent, while the "android:gravity" attribute is for setting the gravity of the element's contents. (Someone correct me if I'm wrong! =P hehe!)


Wouldn't it be easier to use a RelativeLayout? With android:layout_alignParentTop="true" and android:layout_centerHorizontal="true" you can achieve the desired effect.

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