Android编程调用Camera和相册功能详解

本文实例讲述了Android编程调用Camera和相册功能。分享给大家供大家参考，具体如下：

xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:orientation="vertical" >
 <Button
   android:id="@+id/button_cameraButton"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:text="拍照" />
 <Button
   android:id="@+id/button_photoButton"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:text="相册" />
 <ImageView
   android:id="@+id/imageview_preview"
   android:layout_width="fill_parent"
   android:layout_height="fill_parent"
   android:layout_gravity="center"
   android:src="@drawable/ic_launcher" />
</LinearLayout>

activity：

package com.wj.cameratest;
import java.io.File;
import android.app.Activity;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
public class CameraShowActivity extends Activity {
 private ImageView mImageView;
 private Button mButtonCamera;
 private Button mButtonPhoto;
 @Override
 public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_camera_show);
   mImageView = (ImageView) this.findViewById(R.id.imageview_preview);
   mButtonCamera = (Button) this.findViewById(R.id.button_cameraButton);
   mButtonPhoto = (Button) this.findViewById(R.id.button_photoButton);
   mButtonCamera.setOnClickListener(new OnClickListener() { //打开Camera
     @Override
     public void onClick(View v) {
       Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
       intent.putExtra(MediaStore.EXTRA_OUTPUT,
           Uri.fromFile(new File(Environment
               .getExternalStorageDirectory(), "camera.jpg")));
       intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);
       startActivityForResult(intent, 10);
     }
   });
   mButtonPhoto.setOnClickListener(new OnClickListener() { //获取相册
     @Override
     public void onClick(View v) {
       Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
       intent.addCategory(Intent.CATEGORY_OPENABLE);
       intent.setType("image/*");
       intent.putExtra("crop", "true");
       intent.putExtra("aspectX",1);
       intent.putExtra("aspectY",1);
       intent.putExtra("outputX", 80);
       intent.putExtra("outputY", 80);
       intent.putExtra("return-data",true);
       startActivityForResult(intent, 11);
     }
   });
 }
 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
   if (requestCode == 10 && resultCode == Activity.RESULT_OK) {
     this.mImageView.setImageDrawable(Drawable.createFromPath(new File(
         Environment.getExternalStorageDirectory(), "camera.jpg")
         .getAbsolutePath()));
     System.out.println("data-->"+data);
   }else if (requestCode == 11 && resultCode ==Activity.RESULT_OK) {
     System.out.println("data2-->"+data);
   }
 }
}

Manifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="com.wj.cameratest"
 android:versionCode="1"
 android:versionName="1.0" >
 <uses-sdk
   android:minSdkVersion="8"
   android:targetSdkVersion="15" />
 <uses-permission android:name="android.permission.CAMERA" />
 <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 <uses-feature android:name="android.hardware.camera" />
 <uses-feature android:name="android.hardware.camera.autofocus" />
 <application
   android:icon="@drawable/ic_launcher"
   android:label="@string/app_name"
   android:theme="@style/AppTheme" >
   <activity
     android:name=".CameraShowActivity"
     android:label="@string/title_activity_camera_show" >
     <intent-filter>
       <action android:name="android.intent.action.MAIN" />
       <category android:name="android.intent.category.LAUNCHER" />
     </intent-filter>
   </activity>
 </application>
</manifest>

android 调用相册里的图片并返回

Intent intent=new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 80);
intent.putExtra("outputY", 80);
intent.putExtra("return-data", true);
startActivityForResult(intent, 0);

在原来的Activity中如下获取选到的图片：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
System.out.println(resultCode);
Bitmap cameraBitmap = (Bitmap) data.getExtras().get("data");
super.onActivityResult(requestCode, resultCode, data);
}

PS：关于AndroidManifest.xml文件相关属性功能可参考本站在线工具：

Android Manifest功能与权限描述大全：
http://tools.jb51.net/table/AndroidManifest

希望本文所述对大家Android程序设计有所帮助。