Android 调用系统相机以及相册源码

[java] view
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package com.example.takephotodemo;



import java.io.File;

import java.io.IOException;

import android.media.ExifInterface;

import android.net.Uri;

import android.os.Bundle;

import android.os.Environment;

import android.provider.MediaStore;

import android.app.Activity;

import android.content.Intent;

import android.database.Cursor;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Matrix;

import android.view.Gravity;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.ImageView;

import android.widget.PopupWindow;

import android.widget.Toast;



public class MainActivity extends Activity implements OnClickListener {

private ImageView mimageViewPhotoShow;

private PopupWindow mPopupWindow;

private View mpopview;

private Bitmap photo;

private File mPhotoFile;

private int CAMERA_RESULT = 100;

private int RESULT_LOAD_IMAGE = 200;

private String saveDir = Environment.getExternalStorageDirectory()

.getPath() + "/temp_image";



@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

InitUI();

}



private void InitUI() {

View buttonChoosePhoto = (Button) findViewById(R.id.buttonChoosePhoto);

if (buttonChoosePhoto != null) {

buttonChoosePhoto.setOnClickListener(this);

}



mimageViewPhotoShow = (ImageView) findViewById(R.id.imageViewPhotoShow);

}



@Override

public void onClick(View arg0) {

if (arg0.getId() == R.id.buttonChoosePhoto) {

LayoutInflater inflater = LayoutInflater.from(this);

mpopview = inflater.inflate(R.layout.layout_login_choose_photo,

null);



mPopupWindow = new PopupWindow(mpopview, 300, 400, true);

mPopupWindow.setBackgroundDrawable(getResources().getDrawable(

R.drawable.tekephoto_dialog_background));



mPopupWindow.showAtLocation(mimageViewPhotoShow, Gravity.CENTER, 0,

0);

Button mbuttonTakePhoto = (Button) mpopview

.findViewById(R.id.button_take_photo);

Button mbuttonChoicePhoto = (Button) mpopview

.findViewById(R.id.button_choice_photo);

Button mbuttonChoicecannce = (Button) mpopview

.findViewById(R.id.button_choice_cancer);



// 相册上传

mbuttonChoicePhoto.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

mPopupWindow.dismiss();

Intent i = new Intent(

Intent.ACTION_PICK,

android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

startActivityForResult(i, RESULT_LOAD_IMAGE);

}

});



File savePath = new File(saveDir);

if (!savePath.exists()) {

savePath.mkdirs();

}



// 拍照上传

mbuttonTakePhoto.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

mPopupWindow.dismiss();

destoryImage();

String state = Environment.getExternalStorageState();

if (state.equals(Environment.MEDIA_MOUNTED)) {

mPhotoFile = new File(saveDir, "temp.jpg");

mPhotoFile.delete();

if (!mPhotoFile.exists()) {

try {

mPhotoFile.createNewFile();

} catch (IOException e) {

e.printStackTrace();

Toast.makeText(getApplication(), "照片创建失败!",

Toast.LENGTH_LONG).show();

return;

}

}

Intent intent = new Intent(

"android.media.action.IMAGE_CAPTURE");

intent.putExtra(MediaStore.EXTRA_OUTPUT,

Uri.fromFile(mPhotoFile));

startActivityForResult(intent, CAMERA_RESULT);

} else {

Toast.makeText(getApplication(), "sdcard无效或没有插入!",

Toast.LENGTH_SHORT).show();

}

}

});



mbuttonChoicecannce.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

mPopupWindow.dismiss();

}

});

}

}



@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

super.onActivityResult(requestCode, resultCode, data);

if (requestCode == CAMERA_RESULT && resultCode == RESULT_OK) {

if (mPhotoFile != null && mPhotoFile.exists()) {

BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();

bitmapOptions.inSampleSize = 8;

int degree = readPictureDegree(mPhotoFile.getAbsolutePath());

Bitmap bitmap = BitmapFactory.decodeFile(mPhotoFile.getPath(),

bitmapOptions);

bitmap = rotaingImageView(degree, bitmap);

mimageViewPhotoShow.setImageBitmap(bitmap);

}

}

if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK

&& null != data) {

Uri selectedImage = data.getData();

String[] filePathColumn = { MediaStore.Images.Media.DATA };



Cursor cursor = getContentResolver().query(selectedImage,

filePathColumn, null, null, null);

cursor.moveToFirst();



int columnIndex = cursor.getColumnIndex(filePathColumn[0]);

String picturePath = cursor.getString(columnIndex);

cursor.close();



mimageViewPhotoShow.setImageBitmap(BitmapFactory

.decodeFile(picturePath));

}

}



private static int readPictureDegree(String path) {

int degree = 0;

try {

ExifInterface exifInterface = new ExifInterface(path);

int orientation = exifInterface.getAttributeInt(

ExifInterface.TAG_ORIENTATION,

ExifInterface.ORIENTATION_NORMAL);

switch (orientation) {

case ExifInterface.ORIENTATION_ROTATE_90:

degree = 90;

break;

case ExifInterface.ORIENTATION_ROTATE_180:

degree = 180;

break;

case ExifInterface.ORIENTATION_ROTATE_270:

degree = 270;

break;

}

} catch (IOException e) {

e.printStackTrace();

}

return degree;

}



private static Bitmap rotaingImageView(int angle, Bitmap bitmap) {

// 旋转图片 动作

Matrix matrix = new Matrix();

matrix.postRotate(angle);

System.out.println("angle2=" + angle);

// 创建新的图片

Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0,

bitmap.getWidth(), bitmap.getHeight(), matrix, true);

return resizedBitmap;

}



@Override

protected void onDestroy() {

destoryImage();

super.onDestroy();

}



private void destoryImage() {

if (photo != null) {

photo.recycle();

photo = null;

}

}

}

activity_main.xml

[html] view
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<?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:orientation="vertical" >



<ScrollView

android:id="@+id/scrollView1"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_weight="1" >



<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:paddingTop="20dp" >



<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center"

android:orientation="vertical" >



<ImageView

android:id="@+id/imageViewPhotoShow"

android:layout_width="150dp"

android:layout_height="150dp"

android:layout_weight="1" />

</LinearLayout>



<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center"

android:paddingTop="20dp"

android:orientation="vertical" >



<Button

android:id="@+id/buttonChoosePhoto"

android:layout_width="100dp"

android:layout_height="40dp"

android:background="@drawable/btn_takephoto_background"

android:text="选择头像"

android:textColor="#eee"

android:textSize="16sp" />

</LinearLayout>

</LinearLayout>

</ScrollView>



</LinearLayout>

layout_login_choose_photo.xml

[html] view
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<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >



<TextView

android:id="@+id/textchoice"

android:layout_width="wrap_content"

android:layout_height="40dp"

android:layout_gravity="center_horizontal"

android:gravity="center"

android:text="请选择获取头像方式："

android:textAppearance="?android:attr/textAppearanceMedium"

android:textSize="16sp" />



<Button

android:id="@+id/button_take_photo"

android:layout_width="match_parent"

android:layout_height="40dp"

android:layout_marginLeft="10dp"

android:layout_marginRight="10dp"

android:layout_marginTop="5dp"

android:background="@drawable/btn_takephoto_background"

android:text="拍照"

android:textColor="#eee"

android:textSize="16sp" />



<Button

android:id="@+id/button_choice_photo"

android:layout_width="match_parent"

android:layout_height="40dp"

android:layout_marginLeft="10dp"

android:layout_marginRight="10dp"

android:layout_marginTop="10dp"

android:background="@drawable/btn_takephoto_background"

android:text="从相册选择"

android:textColor="#eee"

android:textSize="16sp" />



<Button

android:id="@+id/button_choice_cancer"

android:layout_width="match_parent"

android:layout_height="40dp"

android:layout_marginLeft="10dp"

android:layout_marginRight="10dp"

android:layout_marginTop="10dp"

android:background="@drawable/btn_takephoto_background"

android:text="取消"

android:textColor="#eee"

android:textSize="16sp" />



</LinearLayout>

NetUtil这个类，我也是参考网上的，没测试过。是图片上传服务器的。

[java] view
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package com.example.takephotodemo;



import java.io.BufferedReader;

import java.io.File;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

import java.util.Set;

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.HttpStatus;

import org.apache.http.StatusLine;

import org.apache.http.client.HttpClient;

import org.apache.http.client.entity.UrlEncodedFormEntity;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.entity.mime.MultipartEntity;

import org.apache.http.entity.mime.content.FileBody;

import org.apache.http.entity.mime.content.StringBody;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.message.BasicNameValuePair;



public class NetUtil {

/**

* 以POST方式提交表单

*

* @param url

* 服务器路径

* @param param

* 参数键值对

* @return 响应结果

* @throws Exception

*/

public static String doPost(String url, Map<String, Object> param)

throws Exception {

HttpClient client = new DefaultHttpClient();

HttpPost post = new HttpPost(url);

if (param != null && param.size() > 0) {

List<BasicNameValuePair> nameValuePairs = new ArrayList<BasicNameValuePair>(

param.size());

Set<String> keys = param.keySet();

for (Object o : keys) {

String key = (String) o;

nameValuePairs.add(new BasicNameValuePair(key, String

.valueOf(param.get(key))));

}

post.setEntity(new UrlEncodedFormEntity(nameValuePairs, "utf-8"));

}

HttpResponse response = client.execute(post);

/** 返回状态 **/

int statusCode = response.getStatusLine().getStatusCode();

StringBuffer sb = new StringBuffer();

if (statusCode == HttpStatus.SC_OK) {

HttpEntity entity = response.getEntity();

if (entity != null) {

InputStream instream = entity.getContent();

BufferedReader br = new BufferedReader(new InputStreamReader(

instream));

String tempLine;

while ((tempLine = br.readLine()) != null) {

sb.append(tempLine);

}

}

}

post.abort();

return sb.toString();

}



/**

*

*

* @param url

* @param param

* @param file

* @return

* @throws Exception

*/

private String doPost(String url, Map<String, String> param, File file)

throws Exception {

HttpPost post = new HttpPost(url);



HttpClient client = new DefaultHttpClient();

MultipartEntity entity = new MultipartEntity();

if (param != null && !param.isEmpty()) {

for (Map.Entry<String, String> entry : param.entrySet()) {

entity.addPart(entry.getKey(), new StringBody(entry.getValue()));

}

}

// 添加文件参数

if (file != null && file.exists()) {

entity.addPart("file", new FileBody(file));

}

post.setEntity(entity);

HttpResponse response = client.execute(post);

int stateCode = response.getStatusLine().getStatusCode();

StringBuffer sb = new StringBuffer();

if (stateCode == HttpStatus.SC_OK) {

HttpEntity result = response.getEntity();

if (result != null) {

InputStream is = result.getContent();

BufferedReader br = new BufferedReader(

new InputStreamReader(is));

String tempLine;

while ((tempLine = br.readLine()) != null) {

sb.append(tempLine);

}

}

}

post.abort();

return sb.toString();

}



private String doGet(String url) {

StringBuilder sb = new StringBuilder();

try {

HttpGet get = new HttpGet(url);

// HttpPost post = new HttpPost(url);



HttpClient client = new DefaultHttpClient();

HttpResponse response = client.execute(get);

StatusLine state = response.getStatusLine();

if (state.getStatusCode() == HttpStatus.SC_OK) {

HttpEntity eneity = response.getEntity();

BufferedReader br = new BufferedReader(new InputStreamReader(

eneity.getContent()));

String content;

while ((content = br.readLine()) != null) {

sb.append(content);

}

}

get.abort();

} catch (Exception e) {

e.printStackTrace();

return sb.toString();

}

return sb.toString();

}

}

记得加入权限，权限主要是访问sd存储，以及调用系统相机，相册。上传服务器权限也有了。只是我没服务器测试。

[html] view
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<uses-permission android:name="android.permission.CAMERA" />

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

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

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

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

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