图片放大缩小旋转左移右移镜像倒影android

概述               图片放大缩小旋转左移右移镜像倒影demo:TestImage1.将meinv.jpg图片拷贝到以下目录TestImage\app\src\main\res\mipmap-hdpi1.AndroidManifest.xml<?xmlversion="1.0"encoding="utf-8"?><manifestxmlns:android="h                              图片放大缩小旋转左移右移镜像倒影

demo:

Testimage

1. 将 meinv.jpg 图片拷贝到以下目录Testimage\app\src\main\res\mipmap-hdpi

1.AndroIDManifest.xml

<?xml version="1.0" enCoding="utf-8"?><manifest xmlns:androID="http://schemas.androID.com/apk/res/androID"    package="com.glsite.testimage">    <application        androID:allowBackup="true"        androID:icon="@mipmap/ic_launcher"        androID:label="@string/app_name"        androID:roundIcon="@mipmap/ic_launcher_round"        androID:supportsRtl="true"        androID:theme="@style/Apptheme">        <activity androID:name=".MainActivity">            <intent-filter>                <action androID:name="androID.intent.action.MAIN" />                <category androID:name="androID.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>

2.activity_main.xml

<?xml version="1.0" enCoding="utf-8"?><androID.support.constraint.ConstraintLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    xmlns:app="http://schemas.androID.com/apk/res-auto"    xmlns:tools="http://schemas.androID.com/tools"    androID:layout_wIDth="match_parent"    androID:layout_height="match_parent"    tools:context=".MainActivity">    <ImageVIEw        androID:ID="@+ID/iv"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        app:layout_constraintBottom_toBottomOf="parent"        app:layout_constraintleft_toleftOf="parent"        app:layout_constraintRight_toRightOf="parent"        app:layout_constrainttop_totopOf="parent"        androID:src="@mipmap/meinv"/>    <button        androID:ID="@+ID/button"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_marginStart="8dp"        androID:layout_marginleft="8dp"        androID:layout_margintop="8dp"        androID:onClick="turnBig"        androID:text="放大"        app:layout_constraintStart_toStartOf="parent"        app:layout_constrainttop_totopOf="parent" />    <button        androID:ID="@+ID/button2"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_margintop="8dp"        androID:layout_marginEnd="8dp"        androID:layout_marginRight="8dp"        androID:onClick="turnSmall"        androID:text="缩小"        app:layout_constraintEnd_toEndOf="parent"        app:layout_constrainttop_totopOf="parent" /></androID.support.constraint.ConstraintLayout>

3.activity_main2.xml

<?xml version="1.0" enCoding="utf-8"?><androID.support.constraint.ConstraintLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    xmlns:app="http://schemas.androID.com/apk/res-auto"    xmlns:tools="http://schemas.androID.com/tools"    androID:layout_wIDth="match_parent"    androID:layout_height="match_parent"    tools:context=".MainActivity">    <ImageVIEw        androID:ID="@+ID/iv"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        app:layout_constraintBottom_toBottomOf="parent"        app:layout_constraintleft_toleftOf="parent"        app:layout_constraintRight_toRightOf="parent"        app:layout_constrainttop_totopOf="parent"        androID:src="@mipmap/meinv"/>    <button        androID:ID="@+ID/button"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_marginStart="8dp"        androID:layout_marginleft="8dp"        androID:layout_margintop="8dp"        androID:onClick="turnleft"        androID:text="左移"        app:layout_constraintStart_toStartOf="parent"        app:layout_constrainttop_totopOf="parent" />    <button        androID:ID="@+ID/button2"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_margintop="8dp"        androID:layout_marginEnd="8dp"        androID:layout_marginRight="8dp"        androID:onClick="turnRight"        androID:text="右移"        app:layout_constraintEnd_toEndOf="parent"        app:layout_constrainttop_totopOf="parent" /></androID.support.constraint.ConstraintLayout>

4.activity_main3.xml

<?xml version="1.0" enCoding="utf-8"?><androID.support.constraint.ConstraintLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    xmlns:app="http://schemas.androID.com/apk/res-auto"    xmlns:tools="http://schemas.androID.com/tools"    androID:layout_wIDth="match_parent"    androID:layout_height="match_parent"    tools:context=".MainActivity">    <ImageVIEw        androID:ID="@+ID/iv"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        app:layout_constraintBottom_toBottomOf="parent"        app:layout_constraintleft_toleftOf="parent"        app:layout_constraintRight_toRightOf="parent"        app:layout_constrainttop_totopOf="parent"        androID:src="@mipmap/meinv"/>    <button        androID:ID="@+ID/button"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_marginStart="8dp"        androID:layout_marginleft="8dp"        androID:layout_margintop="8dp"        androID:onClick="turnCircleleft"        androID:text="逆时针旋转"        app:layout_constraintStart_toStartOf="parent"        app:layout_constrainttop_totopOf="parent" />    <button        androID:ID="@+ID/button2"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_margintop="8dp"        androID:layout_marginEnd="8dp"        androID:layout_marginRight="8dp"        androID:onClick="turnCircleRight"        androID:text="顺时针旋转"        app:layout_constraintEnd_toEndOf="parent"        app:layout_constrainttop_totopOf="parent" /></androID.support.constraint.ConstraintLayout>

5.activity_main4.xml

<?xml version="1.0" enCoding="utf-8"?><androID.support.constraint.ConstraintLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    xmlns:app="http://schemas.androID.com/apk/res-auto"    xmlns:tools="http://schemas.androID.com/tools"    androID:layout_wIDth="match_parent"    androID:layout_height="match_parent"    tools:context=".MainActivity">    <ImageVIEw        androID:ID="@+ID/iv"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        app:layout_constraintBottom_toBottomOf="parent"        app:layout_constraintleft_toleftOf="parent"        app:layout_constraintRight_toRightOf="parent"        app:layout_constrainttop_totopOf="parent"        androID:src="@mipmap/meinv"/>    <button        androID:ID="@+ID/button"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_marginStart="8dp"        androID:layout_marginleft="8dp"        androID:layout_margintop="8dp"        androID:onClick="click01"        androID:text="倒影"        app:layout_constraintStart_toStartOf="parent"        app:layout_constrainttop_totopOf="parent" />    <button        androID:ID="@+ID/button2"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_margintop="8dp"        androID:layout_marginEnd="8dp"        androID:layout_marginRight="8dp"        androID:onClick="click02"        androID:text="镜面"        app:layout_constraintEnd_toEndOf="parent"        app:layout_constrainttop_totopOf="parent" /></androID.support.constraint.ConstraintLayout>

 

6.MainActivity.java

package com.glsite.testimage;import androID.graphics.Bitmap;import androID.graphics.BitmapFactory;import androID.graphics.Canvas;import androID.graphics.color;import androID.graphics.Matrix;import androID.graphics.Paint;import androID.support.v7.app.AppCompatActivity;import androID.os.Bundle;import androID.vIEw.VIEw;import androID.Widget.ImageVIEw;public class MainActivity extends AppCompatActivity {    private ImageVIEw mIv;    private int dx = 0;    private int degress = 0;    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.activity_main4);        mIv = findVIEwByID(R.ID.iv);    }    /**     * 放大     * @param vIEw     */    public voID turnBig(VIEw vIEw) {        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.meinv);        Matrix matrix = new Matrix();        matrix.setScale(2, 2);        // 1.买一张纸        Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWIDth() * 2, bitmap.getHeight() * 2, bitmap.getConfig());        // 2.买一个画板        Canvas canvas = new Canvas(newBitmap);        // 3.临摹绘画        Paint paint = new Paint();        paint.setcolor(color.BLACK);        canvas.drawBitmap(bitmap, matrix, paint);        mIv.setimageBitmap(newBitmap);    }    /**     * 缩小     * @param vIEw     */    public voID turnSmall(VIEw vIEw) {        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.meinv);        Matrix matrix = new Matrix();        matrix.setScale(0.5f, 0.5f);        // 1.买一张纸        Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWIDth() / 2, bitmap.getHeight() / 2, bitmap.getConfig());        // 2.买一个画板        Canvas canvas = new Canvas(newBitmap);        // 3.临摹绘画        Paint paint = new Paint();        paint.setcolor(color.BLACK);        canvas.drawBitmap(bitmap, matrix, paint);        mIv.setimageBitmap(newBitmap);    }    /**     * 左移     * @param vIEw     */    public voID turnleft(VIEw vIEw) {        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.meinv);        Matrix matrix = new Matrix();        dx--;        matrix.setTranslate(dx, 0);        // 1.买一张纸        Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWIDth(), bitmap.getHeight(), bitmap.getConfig());        // 2.买一个画板        Canvas canvas = new Canvas(newBitmap);        // 3.临摹绘画        Paint paint = new Paint();        canvas.drawcolor(color.WHITE);        paint.setcolor(color.BLACK);        canvas.drawBitmap(bitmap, matrix, paint);        mIv.setimageBitmap(newBitmap);    }    /**     * 右移     * @param vIEw     */    public voID turnRight(VIEw vIEw) {        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.meinv);        Matrix matrix = new Matrix();        dx++;        matrix.setTranslate(dx, 0);        // 1.买一张纸        Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWIDth(), bitmap.getHeight(), bitmap.getConfig());        // 2.买一个画板        Canvas canvas = new Canvas(newBitmap);        // 3.临摹绘画        Paint paint = new Paint();        canvas.drawcolor(color.WHITE);        paint.setcolor(color.BLACK);        canvas.drawBitmap(bitmap, matrix, paint);        mIv.setimageBitmap(newBitmap);    }    /**     * 逆时针旋转     * @param vIEw     */    public voID turnCircleleft(VIEw vIEw) {        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.meinv);        Matrix matrix = new Matrix();        matrix.setRotate(--degress, bitmap.getWIDth(), bitmap.getHeight());        matrix.postTranslate(100, 100);        // 1.买一张纸        Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWIDth()*2, bitmap.getHeight()*2, bitmap.getConfig());        // 2.买一个画板        Canvas canvas = new Canvas(newBitmap);        // 3.临摹绘画        Paint paint = new Paint();        canvas.drawcolor(color.WHITE);        paint.setcolor(color.BLACK);        paint.setAntiAlias(true);// 消除锯齿        canvas.drawBitmap(bitmap, matrix, paint);        mIv.setimageBitmap(newBitmap);    }    /**     * 顺时针旋转     * @param vIEw     */    public voID turnCircleRight(VIEw vIEw) {        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.meinv);        Matrix matrix = new Matrix();        matrix.setRotate(++degress, bitmap.getWIDth(), bitmap.getHeight());        matrix.postTranslate(100, 100);        // 1.买一张纸        Bitmap newBitmap = Bitmap.createBitmap((int)(bitmap.getWIDth()*1.5), (int)(bitmap.getHeight()*1.5), bitmap.getConfig());        // 2.买一个画板        Canvas canvas = new Canvas(newBitmap);        // 3.临摹绘画        Paint paint = new Paint();        canvas.drawcolor(color.WHITE);        paint.setcolor(color.BLACK);        paint.setAntiAlias(true);// 消除锯齿        canvas.drawBitmap(bitmap, matrix, paint);        mIv.setimageBitmap(newBitmap);    }    /**     * 倒影     * @param vIEw     */    public voID click01(VIEw vIEw) {        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.meinv);        Matrix matrix = new Matrix();        matrix.setScale(1, -1);        matrix.postTranslate(0, bitmap.getHeight());        // 1.买一张纸        Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWIDth(), bitmap.getHeight(), bitmap.getConfig());        // 2.买一个画板        Canvas canvas = new Canvas(newBitmap);        // 3.临摹绘画        Paint paint = new Paint();        canvas.drawcolor(color.WHITE);        paint.setcolor(color.BLACK);        paint.setAntiAlias(true);// 消除锯齿        canvas.drawBitmap(bitmap, matrix, paint);        mIv.setimageBitmap(newBitmap);    }    /**     * 镜面     * @param vIEw     */    public voID click02(VIEw vIEw) {        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.meinv);        Matrix matrix = new Matrix();        matrix.setScale(-1, 1);        matrix.postTranslate(bitmap.getWIDth(), 0);        // 1.买一张纸        Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWIDth(), bitmap.getHeight(), bitmap.getConfig());        // 2.买一个画板        Canvas canvas = new Canvas(newBitmap);        // 3.临摹绘画        Paint paint = new Paint();        canvas.drawcolor(color.WHITE);        paint.setcolor(color.BLACK);        paint.setAntiAlias(true);// 消除锯齿        canvas.drawBitmap(bitmap, matrix, paint);        mIv.setimageBitmap(newBitmap);    }}

 

 

 

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