Android 调用系统相机以及相册源码
浏览数：39 /
时间：2015年06月11日
Android 调用系统相机拍照、以及相册。完成之后图片是上传到app上。前面的功能已经测试过了。没有上传到服务器，因为我没服务器测试。但项目里面有个类可以参考上传图片到服务器，我就没测试了。接下来看代码，虽然注释写得少，但其作用看英文单词意思，又在或是查看调用。
项目源码下载地址:http://download.csdn.net/detail/qq_16064871/8585169
转载请注明出处: http://blog.csdn.net/qq_16064871
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
<?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
<?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。
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。
<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" />
项目源码下载地址:http://download.csdn.net/detail/qq_16064871/8585169
转载请注明出处: http://blog.csdn.net/qq_16064871
郑重声明：本站内容如果来自互联网及其他传播媒体，其版权均属原媒体及文章作者所有。转载目的在于传递更多信息及用于网络分享，并不代表本站赞同其观点和对其真实性负责，也不构成任何其他建议。
