Android系统拍照源码

个人对于Android系统拍照的一些总结：一种自定义图片拍照路径 ，另一种直接利用Android拍照后经过处理的缩略图

特别注意第一种方式需要增加SDK读写权限： <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> 下面直接上源码

 package com.example.camerademo;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;

 import android.app.Activity;
 import android.content.Intent;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Environment;
 import android.provider.MediaStore;
 import android.view.View;
 import android.widget.ImageView;

 public class MainActivity extends Activity {

     public static final int REQUEST_CAMERA_CODE = 100;
     public static final int REQUEST_CAMERA_AUTO = 101;
     ImageView mIv;
     String path;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         mIv = (ImageView) findViewById(R.id.iv);
         path =  Environment.getExternalStorageDirectory() + "/" + "temp.jpg";
     }

     public void doClick1(View v) {
         Intent intent = new Intent (MediaStore.ACTION_IMAGE_CAPTURE);
         intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(path)));
         startActivityForResult(intent, REQUEST_CAMERA_CODE);
     }
     public void doClick2(View v) {
         Intent intent = new Intent (MediaStore.ACTION_IMAGE_CAPTURE);
         startActivityForResult(intent, REQUEST_CAMERA_AUTO);
     }

     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         super.onActivityResult(requestCode, resultCode, data);
         if(resultCode == RESULT_OK) {
             if(requestCode == REQUEST_CAMERA_CODE ) {
                 FileInputStream fis = null;
                 try {
                     fis = new FileInputStream(path);
                     Bitmap bitmap = BitmapFactory.decodeStream(fis);
                     if(bitmap != null) {
                         mIv.setImageBitmap(bitmap);
                     }
                 } catch (FileNotFoundException e) {
                     // TODO Auto-generated catch block
                     e.printStackTrace();
                 } finally{
                     if(fis != null) {
                         try {
                             fis.close();
                         } catch (IOException e) {
                             // TODO Auto-generated catch block
                             e.printStackTrace();
                         }
                     }
                 }

             } else if(requestCode == REQUEST_CAMERA_AUTO) {
                 Bundle bundle = data.getExtras();
                 Bitmap bitmap = (Bitmap) bundle.get("data");
                 if(bitmap != null) {
                     mIv.setImageBitmap(bitmap);
                 }
             }
         }

     }

 }

 <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/startCamera"
         android:onClick="doClick1"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_below="@+id/textView1"
         android:layout_centerHorizontal="true"
         android:layout_marginTop="17dp"
         android:text="startCamera_custome_address" />

     <ImageView
         android:id="@+id/iv"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@+id/startCamera"
         android:layout_centerVertical="true"
         android:layout_marginLeft="32dp" />

     <Button
         android:id="@+id/button1"
         android:onClick="doClick2"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@+id/startCamera"
         android:layout_below="@+id/startCamera"
         android:layout_marginTop="41dp"
         android:text="start_camera_auto_addres" />

 </RelativeLayout>

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

     <uses-sdk
         android:minSdkVersion="8"
         android:targetSdkVersion="21" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

     <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>