[移动开发]55，作为一名程序员我不忘初心

activity_main.xml

<RelativeLayout xmlns:android=“http://schemas.android.com/apk/res/android”

xmlns:tools=“http://schemas.android.com/tools”

android:layout_width=“match_parent”

android:layout_height=“match_parent”

android:paddingBottom="@dimen/activity_vertical_margin"

android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

tools:context=".MainActivity" >

<ImageView

android:layout_width=“wrap_content”

android:layout_height=“wrap_content”

android:src="@drawable/xiatu" />

<ImageView

android:id="@+id/iv"

android:layout_width=“wrap_content”

android:layout_height=“wrap_content”

android:src="@drawable/shangtu" />

MainActivity.java

package com.ldw.siyifu;

import android.R.color;

import android.app.Activity;

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.os.Bundle;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnTouchListener;

import android.widget.ImageView;

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

//获取到原图片

Bitmap bitSrc = BitmapFactory.decodeResource(getResources(), R.drawable.awaiyi);

//创建外衣副本

final Bitmap bitCopy = Bitmap.createBitmap(bitSrc.getWidth(), bitSrc.getHeight(), bitSrc.getConfig());

Paint paint = new Paint();

Canvas canvas = new Canvas(bitCopy);

canvas.drawBitmap(bitSrc, new Matrix(), paint);

final ImageView iv = (ImageView) findViewById(R.id.iv);

iv.setImageBitmap(bitCopy);

iv.setOnTouchListener(new OnTouchListener(){

@Override

public boolean onTouch(View v, MotionEvent event) {

int action = event.getAction();

switch(action){

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