Positioning an image inside an ImageView with gravity: top
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║ Linear Layout (Center) ║
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║ ║ ImageView ╔══════════════╗ ║ ║
║ ║ ║ ║ (Center) ║ ║
║ ║ ║ Actual image ║ ║ ║
║ ║ ║ ║ ║ ║
║ ║ ║ (Center) ║ ║ ║
║ ║ ║ ║ ║ ║
║ ║ ╚══════════════╝ ║ ║
║ ╚══════════════════════════════════════════════╝ ║
║ ║
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And I want to do this:
╔════════════════════════════════════════════════════════╗
║ Linear Layout (Center) ║
║ ╔══════════════════════════════════════════════╗ ║
║ ║ ImageView ║ ║ ║ ║
║ ║ ║ ║ (Center) ║ ║
║ ║ ║ Actual image ║ ║ ║
║ ║ ║ ║ ║ ║
║ ║ ║ (Top) ║ ║ ║
║ ║ ║ ║ ║ ║
║ ║ ╚══════════════╝ ║ ║
║ ╚══════════════════════════════════════════════╝ ║
║ ║
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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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