android获取imageView图片并保存

网上看的很多雷同，试问在转载时有多少人试过可以用吗？

最反感那样的博文，

自己亲测可用，

package com.example.deletefile_1;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends Activity {

private ImageView imageView1;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
imageView1=(ImageView)findViewById(R.id.imageView1);

imageView1.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
imageView1.buildDrawingCache(true);
imageView1.buildDrawingCache();
Bitmap bitmap = imageView1.getDrawingCache();
saveBitmapFile(bitmap);
imageView1.setDrawingCacheEnabled(false);
Toast.makeText(MainActivity.this, "点击", Toast.LENGTH_SHORT).show();

}
});

}
////////////////////////
public void saveBitmapFile(Bitmap bitmap){

File temp = new File("/sdcard/1delete/");//要保存文件先创建文件夹
if (!temp.exists()) {
temp.mkdir();
}
////重复保存时，覆盖原同名图片
File file=new File("/sdcard/1delete/1.jpg");//将要保存图片的路径和图片名称
// File file = new File("/sdcard/1delete/1.png");/////延时较长
try {
BufferedOutputStream bos= new BufferedOutputStream(new FileOutputStream(file));
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);
bos.flush();
bos.close();

} catch (IOException e) {
e.printStackTrace();
}
}

public void deleteFile(View v){////点击按钮删除这个文件
File file = new File("/sdcard/1spray/1.png");
if(file.exists()){
file.delete();
}

}///deleteFile
}

<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"
tools:context="${relativePackage}.${activityClass}" >

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />

<Button
android:id="@+id/button1"
android:onClick="deleteFile"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/textView1"
android:layout_marginLeft="20dp"
android:layout_marginTop="70dp"
android:text="Button" />

<ImageView
android:id="@+id/imageView1"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_centerVertical="true"
android:layout_toRightOf="@+id/button1"
android:src="@drawable/ic_launcher" />

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.deletefile_1"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="15"
android:targetSdkVersion="16" />

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

</manifest>