Android-RatioLayout 
This is a specified proportion to the size of the Layout or View support library, with which you can easily set a fixed ratio of the size of the Layout or View, internal adaptive size calculation, completely abandon the code to calculate the size! If you have any questions in the course or suggestions, please send an e-mail to the following e-mail, thank you!
For more information please see the website
Screenshots
Android-RatioLayout with xml code
<net.soulwolf.widget.ratiolayout.widget.RatioFrameLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
app:datumRatio="datumWidth"
app:widthRatio="16.0"
app:heightRatio="9.0"
android:layout_height="wrap_content">
<net.soulwolf.widget.ratiolayout.widget.RatioImageView
android:id="@+id/image2"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:datumRatio="datumWidth"
app:widthRatio="16.0"
app:heightRatio="7.0"
android:scaleType="centerCrop"/>
<net.soulwolf.widget.ratiolayout.widget.RatioTextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textSize="25sp"
android:textStyle="bold"
android:gravity="center"
app:datumRatio="datumWidth"
app:widthRatio="16.0"
android:background="@color/sample_text"
app:heightRatio="7.0"
android:text="RatioImageView/RatioTextView:16*7"
android:textColor="@android:color/white"/> </net.soulwolf.widget.ratiolayout.widget.RatioFrameLayout> <LinearLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:orientation="horizontal">
<net.soulwolf.widget.ratiolayout.widget.RatioTextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@color/sample_primary"
android:gravity="center"
android:text="Square"
android:textColor="@android:color/white"
android:textSize="20sp"
android:textStyle="bold"
app:isSquare="true"/>
<net.soulwolf.widget.ratiolayout.widget.RatioView
android:layout_width="15dp"
android:layout_height="wrap_content"
app:heightRatio="1"
app:widthRatio="1"/>
<net.soulwolf.widget.ratiolayout.widget.RatioTextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@color/sample_primary"
android:gravity="center"
android:text="AspectRatio:1.0"
android:textColor="@android:color/white"
android:textSize="20sp"
android:textStyle="bold"
app:aspectRatio="1"/> </LinearLayout> <net.soulwolf.widget.ratiolayout.widget.RatioRelativeLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
app:datumRatio="datumWidth"
app:widthRatio="15.0"
app:layout_marginTop="8dp"
app:heightRatio="10.0"
app:layout_height="wrap_content"/>
Android-RatioLayout with java code
RatioFrameLayout ratioFrameLayout = new RatioFrameLayout(context);
ratioFrameLayout.setRatio(datumRatio,widthRatio,heightRatio);
ratioFrameLayout.setSquare(square);
ratioFrameLayout.setAspectRatio(aspectRatio);
Attr params info
| attrName | Explanation |
| datumRatio | This parameter indicates the ratio is calculated based on Width Or Height! Default auto |
| widthRatio | This parameter indicates the proportion of the size Width |
| heightRatio | This parameter indicates the proportion of the size Height |
| isSquare | This parameter indicates the proportion of the square |
| aspectRatio | This parameter indicates the proportion of the (width / height) |
Implementing View!
- RatioAbsoluteLayout
- RatioLinearLayout
- RatioButton
- RatioCheckBox
- RatioCheckedTextView
- RatioEditText
- RatioFrameLayout
- RatioGridLayout
- RatioImageButton
- RatioImageView
- RatioProgressBar
- RatioRadioButton
- RatioRadioGroup
- RatioRelativeLayout
- RatioSpace
- RatioTableLayout
- RatioTextView
- RatioGridView
- RatioListView
- RatioRecyclerView
- RatioCardView
Custom
public class RatioFrameLayout extends FrameLayout implements RatioMeasureDelegate {
private RatioLayoutDelegate mRatioLayoutDelegate;
public RatioFrameLayout(Context context) {
super(context);
}
public RatioFrameLayout(Context context, AttributeSet attrs) {
super(context, attrs);
mRatioLayoutDelegate = RatioLayoutDelegate.obtain(this, attrs);
}
public RatioFrameLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
mRatioLayoutDelegate = RatioLayoutDelegate.obtain(this, attrs, defStyleAttr);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public RatioFrameLayout(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
mRatioLayoutDelegate = RatioLayoutDelegate.obtain(this, attrs, defStyleAttr, defStyleRes);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (mRatioLayoutDelegate != null) {
mRatioLayoutDelegate.update(widthMeasureSpec, heightMeasureSpec);
widthMeasureSpec = mRatioLayoutDelegate.getWidthMeasureSpec();
heightMeasureSpec = mRatioLayoutDelegate.getHeightMeasureSpec();
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
public void setRatio(RatioDatumMode mode, float datumWidth, float datumHeight) {
if (mRatioLayoutDelegate != null) {
mRatioLayoutDelegate.setRatio(mode, datumWidth, datumHeight);
}
}
@Override
public void setSquare(boolean square) {
if (mRatioLayoutDelegate != null) {
mRatioLayoutDelegate.setSquare(square);
}
}
@Override
public void setAspectRatio(float aspectRatio) {
if (mRatioLayoutDelegate != null) {
mRatioLayoutDelegate.setAspectRatio(aspectRatio);
}
}
}
Maven
<dependency>
<groupId>net.soulwolf.widget</groupId>
<artifactId>ratiolayout</artifactId>
<version>2.0.0</version>
<type>pom</type> </dependency> Gradle
allprojects {
repositories {
jcenter()
}
}
compile 'net.soulwolf.widget:ratiolayout:2.0.0' Developed by
Amphiaraus - [email protected]
Author other library
RoundedLayout - A Layout that handles the filery of a View
License
Copyright 2015 The Android Open Source Project for Android-RatioLayout Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.