Android图片上传，可以选择多张图片，缩放预览，拍照上传等

仿照微信，朋友圈分享图片功能。可以进行图片的多张选择，拍照添加图片，以及进行图片的预览，预览时可以进行缩放，并且可以删除选中状态的图片。很不错的源码，大家有需要可以下载看看。

微信

下载地址：微信上传图片源码

//部分代码如下

package com.king.photo.activity;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.provider.MediaStore;
import android.util.Log;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.PopupWindow;
import android.widget.RelativeLayout;
import com.king.photo.R;
import com.king.photo.util.Bimp;
import com.king.photo.util.FileUtils;
import com.king.photo.util.ImageItem;
import com.king.photo.util.PublicWay;
import com.king.photo.util.Res;
//首页面activity
public class MainActivity extends Activity {
private GridView noScrollgridview;
private GridAdapter adapter;
private View parentView;
private PopupWindow pop = null;
private LinearLayout ll_popup;
public static Bitmap bimap ;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Res.init(this);
bimap = BitmapFactory.decodeResource(
getResources(),
R.drawable.icon_addpic_unfocused);
PublicWay.activityList.add(this);
parentView = getLayoutInflater().inflate(R.layout.activity_selectimg, null);
setContentView(parentView);
Init();
}
public void Init() {
pop = new PopupWindow(MainActivity.this);
View view = getLayoutInflater().inflate(R.layout.item_popupwindows, null);
ll_popup = (LinearLayout) view.findViewById(R.id.ll_popup);
pop.setWidth(LayoutParams.MATCH_PARENT);
pop.setHeight(LayoutParams.WRAP_CONTENT);
pop.setBackgroundDrawable(new BitmapDrawable());
pop.setFocusable(true);
pop.setOutsideTouchable(true);
pop.setContentView(view);
RelativeLayout parent = (RelativeLayout) view.findViewById(R.id.parent);
Button bt1 = (Button) view
.findViewById(R.id.item_popupwindows_camera);
Button bt2 = (Button) view
.findViewById(R.id.item_popupwindows_Photo);
Button bt3 = (Button) view
.findViewById(R.id.item_popupwindows_cancel);
parent.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
pop.dismiss();
ll_popup.clearAnimation();
}
});
bt1.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
photo();
pop.dismiss();
ll_popup.clearAnimation();
}
});
bt2.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,
AlbumActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.activity_translate_in, R.anim.activity_translate_out);
pop.dismiss();
ll_popup.clearAnimation();
}
});
bt3.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
pop.dismiss();
ll_popup.clearAnimation();
}
});
noScrollgridview = (GridView) findViewById(R.id.noScrollgridview);
noScrollgridview.setSelector(new ColorDrawable(Color.TRANSPARENT));
adapter = new GridAdapter(this);
adapter.update();
noScrollgridview.setAdapter(adapter);
noScrollgridview.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
if (arg2 == Bimp.tempSelectBitmap.size()) {
Log.i("ddddddd", "----------");
ll_popup.startAnimation(AnimationUtils.loadAnimation(MainActivity.this,R.anim.activity_translate_in));
pop.showAtLocation(parentView, Gravity.BOTTOM, 0, 0);
} else {
Intent intent = new Intent(MainActivity.this,
GalleryActivity.class);
intent.putExtra("position", "1");
intent.putExtra("ID", arg2);
startActivity(intent);
}
}
});
}
@SuppressLint("HandlerLeak")
public class GridAdapter extends BaseAdapter {
private LayoutInflater inflater;
private int selectedPosition = -1;
private boolean shape;
public boolean isShape() {
return shape;
}
public void setShape(boolean shape) {
this.shape = shape;
}
public GridAdapter(Context context) {
inflater = LayoutInflater.from(context);
}
public void update() {
loading();
}
public int getCount() {
if(Bimp.tempSelectBitmap.size() == 9){
return 9;
}
return (Bimp.tempSelectBitmap.size() + 1);
}
public Object getItem(int arg0) {
return null;
}
public long getItemId(int arg0) {
return 0;
}
public void setSelectedPosition(int position) {
selectedPosition = position;
}
public int getSelectedPosition() {
return selectedPosition;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
convertView = inflater.inflate(R.layout.item_published_grida,
parent, false);
holder = new ViewHolder();
holder.image = (ImageView) convertView
.findViewById(R.id.item_grida_image);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
if (position ==Bimp.tempSelectBitmap.size()) {
holder.image.setImageBitmap(BitmapFactory.decodeResource(
getResources(), R.drawable.icon_addpic_unfocused));
if (position == 9) {
holder.image.setVisibility(View.GONE);
}
} else {
holder.image.setImageBitmap(Bimp.tempSelectBitmap.get(position).getBitmap());
}
return convertView;
}
public class ViewHolder {
public ImageView image;
}
Handler handler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
adapter.notifyDataSetChanged();
break;
}
super.handleMessage(msg);
}
};
public void loading() {
new Thread(new Runnable() {
public void run() {
while (true) {
if (Bimp.max == Bimp.tempSelectBitmap.size()) {
Message message = new Message();
message.what = 1;
handler.sendMessage(message);
break;
} else {
Bimp.max += 1;
Message message = new Message();
message.what = 1;
handler.sendMessage(message);
}
}
}
}).start();
}
}
public String getString(String s) {
String path = null;
if (s == null)
return "";
for (int i = s.length() - 1; i > 0; i++) {
s.charAt(i);
}
return path;
}
protected void onRestart() {
adapter.update();
super.onRestart();
}
private static final int TAKE_PICTURE = 0x000001;
public void photo() {
Intent openCameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(openCameraIntent, TAKE_PICTURE);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case TAKE_PICTURE:
if (Bimp.tempSelectBitmap.size() < 9 && resultCode == RESULT_OK) {
String fileName = String.valueOf(System.currentTimeMillis());
Bitmap bm = (Bitmap) data.getExtras().get("data");
FileUtils.saveBitmap(bm, fileName);
ImageItem takePhoto = new ImageItem();
takePhoto.setBitmap(bm);
Bimp.tempSelectBitmap.add(takePhoto);
}
break;
}
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
for(int i=0;i<PublicWay.activityList.size();i++){
if (null != PublicWay.activityList.get(i)) {
PublicWay.activityList.get(i).finish();
}
}
System.exit(0);
}
return true;
}
}

下载地址：微信上传图片源码

备份下载地址：http://download.csdn.net/detail/jdsjlzx/8486449

补充：

通过GridView仿微信动态添加本地图片

此篇文章主要讲述GridView控件实现添加本地图片并显示.主要是关于GridView控件的基本操作,通常可以通过自定义继承BaseAdapter的适配器加载图片,而下面讲述的不是自定义的适配器,而是调用SimpleAdapter实现的.至于上传发布与网络交互此处不讲述,后面文章会讲!

一. 实现效果

主要是通过点击+从本地相册中添加图片,同时显示图片至GridView.点击图片可以进行删除操作,同时界面中的发布EditView控件也很好看,不足之处在于+好没有移动至最后,但原理相同.

二. 项目工程结构

三. 界面布局详细代码

1.主界面activity_main.xml
主要通过相对布局实现,第一部分是底部的TextView,中间是EditView和GridView相对布局,下面是两个按钮.同时EditView调用res/drawable-hdpi中的editview_shape.xml,GridView显示的每张图片通过griditem_addpic.xml实现.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.suishoupaipublish.MainActivity"
tools:ignore="MergeRootFrame" >
<RelativeLayout
android:id="@+id/Layout_top"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_marginTop="5dp"
android:layout_alignParentTop="true"
android:gravity="center">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="25sp"
android:gravity="center"
android:text="发布信息" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/Layout_bottom"
android:layout_alignParentBottom="true"
android:layout_width="fill_parent"
android:layout_height="50dp"
android:gravity="center" >
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:textSize="20sp"
android:text="发布拍拍" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_toRightOf="@+id/button1"
android:textSize="20sp"
android:text="取消发布" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/Content_Layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="@id/Layout_bottom"
android:layout_below="@id/Layout_top"
android:gravity="center">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_alignParentBottom="true" >
<EditText
android:id="@+id/editText1"
android:layout_height="120dp"
android:layout_width="fill_parent"
android:textColor="#000000"
android:layout_margin="12dp"
android:textSize="20sp"
android:hint="随手说出你此刻的心声..."
android:maxLength="500"
android:singleLine="false"
android:background="@drawable/editview_shape" />
<GridView
android:id="@+id/gridView1"
android:layout_width="fill_parent"
android:layout_height="200dp"
android:layout_margin="10dp"
android:background="#EFDFDF"
android:horizontalSpacing="5dp"
android:verticalSpacing="5dp"
android:numColumns="4"
android:columnWidth="90dp"
android:stretchMode="columnWidth"
android:gravity="center" >
</GridView>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="(友情提示:只能添加9张图片,长按图片可以删除已添加图片)"
android:gravity="center" />
</LinearLayout>
</RelativeLayout>
</RelativeLayout>

2.显示ImageView图片布局griditem_addpic.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:descendantFocusability="blocksDescendants"
android:orientation="vertical" >
<RelativeLayout
android:layout_gravity="center"
android:layout_width="80dp"
android:layout_height="80dp"
android:orientation="vertical" >
<ImageView
android:layout_marginTop="10dp"
android:layout_marginRight="10dp"
android:id="@+id/imageView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="fitXY"
android:src="@drawable/gridview_addpic" />
</RelativeLayout>
</LinearLayout>

3.设置EditView控件圆角和颜色 editview_shape.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
android:padding="10dp">
<soild android:color="#ffffff"/>
<corners
android:radius="15dp"
android:bottomRightRadius="15dp"
android:bottomLeftRadius="15dp"
android:topLeftRadius="15dp"
android:topRightRadius="15dp"/>
<stroke
android:color="#32CD32"
android:width="4px" />
</shape>

四. 代码详解

它主要是思想如下:
1.通过SimpleAdapter适配器实现实现加载图片,在gridView1.setOnItemClickListener()点击函数中响应不同操作.
2.当点击加号图片(+)时,调用本地相册通过Intent实现获取图片路径存于字符串pathImage.
3.获取图片路径后在onResume中刷新图片,通过GridView的setAdapter()和notifyDataSetChanged()()函数刷新加载图片.
4.点击图片时会获取其position,通过dialog()函数弹出对话框提示是否删除,通过remove实现删除.
具体代码如下所示：

public class MainActivity extends Activity {
private GridView gridView1; //网格显示缩略图
private Button buttonPublish; //发布按钮
private final int IMAGE_OPEN = 1; //打开图片标记
private String pathImage; //选择图片路径
private Bitmap bmp; //导入临时图片
private ArrayList<HashMap<String, Object>> imageItem;
private SimpleAdapter simpleAdapter; //适配器
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/*
* 防止键盘挡住输入框
* 不希望遮挡设置activity属性 android:windowSoftInputMode="adjustPan"
* 希望动态调整高度 android:windowSoftInputMode="adjustResize"
*/
getWindow().setSoftInputMode(WindowManager.LayoutParams.
SOFT_INPUT_ADJUST_PAN);
//锁定屏幕
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.activity_main);
//获取控件对象
gridView1 = (GridView) findViewById(R.id.gridView1);
/*
* 载入默认图片添加图片加号
* 通过适配器实现
* SimpleAdapter参数imageItem为数据源 R.layout.griditem_addpic为布局
*/
//获取资源图片加号
bmp = BitmapFactory.decodeResource(getResources(), R.drawable.gridview_addpic);
imageItem = new ArrayList<HashMap<String, Object>>();
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("itemImage", bmp);
imageItem.add(map);
simpleAdapter = new SimpleAdapter(this,
imageItem, R.layout.griditem_addpic,
new String[] { "itemImage"}, new int[] { R.id.imageView1});
/*
* HashMap载入bmp图片在GridView中不显示,但是如果载入资源ID能显示如
* map.put("itemImage", R.drawable.img);
* 解决方法:
* 1.自定义继承BaseAdapter实现
* 2.ViewBinder()接口实现
* 参考 http://blog.csdn.net/admin_/article/details/7257901
*/
simpleAdapter.setViewBinder(new ViewBinder() {
@Override
public boolean setViewValue(View view, Object data,
String textRepresentation) {
// TODO Auto-generated method stub
if(view instanceof ImageView && data instanceof Bitmap){
ImageView i = (ImageView)view;
i.setImageBitmap((Bitmap) data);
return true;
}
return false;
}
});
gridView1.setAdapter(simpleAdapter);
/*
* 监听GridView点击事件
* 报错:该函数必须抽象方法故需要手动导入import android.view.View;
*/
gridView1.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id)
{
if( imageItem.size() == 10) { //第一张为默认图片
Toast.makeText(MainActivity.this, "图片数9张已满", Toast.LENGTH_SHORT).show();
}
else if(position == 0) { //点击图片位置为+ 0对应0张图片
Toast.makeText(MainActivity.this, "添加图片", Toast.LENGTH_SHORT).show();
//选择图片
Intent intent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, IMAGE_OPEN);
//通过onResume()刷新数据
}
else {
dialog(position);
//Toast.makeText(MainActivity.this, "点击第"+(position + 1)+" 号图片",
// Toast.LENGTH_SHORT).show();
}
}
});
}
//获取图片路径响应startActivityForResult
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
//打开图片
if(resultCode==RESULT_OK && requestCode==IMAGE_OPEN) {
Uri uri = data.getData();
if (!TextUtils.isEmpty(uri.getAuthority())) {
//查询选择图片
Cursor cursor = getContentResolver().query(
uri,
new String[] { MediaStore.Images.Media.DATA },
null,
null,
null);
//返回没找到选择图片
if (null == cursor) {
return;
}
//光标移动至开头获取图片路径
cursor.moveToFirst();
pathImage = cursor.getString(cursor
.getColumnIndex(MediaStore.Images.Media.DATA));
}
} //end if 打开图片
}
//刷新图片
@Override
protected void onResume() {
super.onResume();
if(!TextUtils.isEmpty(pathImage)){
Bitmap addbmp=BitmapFactory.decodeFile(pathImage);
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("itemImage", addbmp);
imageItem.add(map);
simpleAdapter = new SimpleAdapter(this,
imageItem, R.layout.griditem_addpic,
new String[] { "itemImage"}, new int[] { R.id.imageView1});
simpleAdapter.setViewBinder(new ViewBinder() {
@Override
public boolean setViewValue(View view, Object data,
String textRepresentation) {
// TODO Auto-generated method stub
if(view instanceof ImageView && data instanceof Bitmap){
ImageView i = (ImageView)view;
i.setImageBitmap((Bitmap) data);
return true;
}
return false;
}
});
gridView1.setAdapter(simpleAdapter);
simpleAdapter.notifyDataSetChanged();
//刷新后释放防止手机休眠后自动添加
pathImage = null;
}
}
/*
* Dialog对话框提示用户删除操作
* position为删除图片位置
*/
protected void dialog(final int position) {
AlertDialog.Builder builder = new Builder(MainActivity.this);
builder.setMessage("确认移除已添加图片吗？");
builder.setTitle("提示");
builder.setPositiveButton("确认", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
imageItem.remove(position);
simpleAdapter.notifyDataSetChanged();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
}

同时需要在AndroidMainfest.xml中添加权限操作SD卡和网络上传至服务器.

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

五. 总结

该文章需要注意一个地方：在使用SimpleAdapter适配器加载bmp图片时,可能在GridView中不显示.即HashMap中map.put("itemImage",bmp)不显示图片,而使用put装入R.drawable.img却能显示.
这时有两种解决方法,一种是自定义继承BaseAdapter的适配器实现;另一种方法则是如上所示通过ViewBinder()接口实现,感谢博主dmin_提供的方法.
下载地址:http://download.csdn.net/detail/eastmount/8237429

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