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>