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>

秒客网

Android系统拍照源码

相关文章