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:
<LinearLayoutxmlns: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:
packagecom.wj.cameratest; importjava.io.File; importandroid.app.Activity; importandroid.content.Intent; importandroid.graphics.drawable.Drawable; importandroid.net.Uri; importandroid.os.Bundle; importandroid.os.Environment; importandroid.provider.MediaStore; importandroid.view.View; importandroid.view.View.OnClickListener; importandroid.widget.Button; importandroid.widget.ImageView; publicclassCameraShowActivityextendsActivity{ privateImageViewmImageView; privateButtonmButtonCamera; privateButtonmButtonPhoto; @Override publicvoidonCreate(BundlesavedInstanceState){ 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(newOnClickListener(){//打开Camera @Override publicvoidonClick(Viewv){ Intentintent=newIntent("android.media.action.IMAGE_CAPTURE"); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(newFile(Environment .getExternalStorageDirectory(),"camera.jpg"))); intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY,0); startActivityForResult(intent,10); } }); mButtonPhoto.setOnClickListener(newOnClickListener(){//获取相册 @Override publicvoidonClick(Viewv){ Intentintent=newIntent(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 protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){ if(requestCode==10&&resultCode==Activity.RESULT_OK){ this.mImageView.setImageDrawable(Drawable.createFromPath(newFile( Environment.getExternalStorageDirectory(),"camera.jpg") .getAbsolutePath())); System.out.println("data-->"+data); }elseif(requestCode==11&&resultCode==Activity.RESULT_OK){ System.out.println("data2-->"+data); } } }
Manifest.xml
<manifestxmlns: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-permissionandroid:name="android.permission.CAMERA"/> <uses-permissionandroid:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/> <uses-permissionandroid:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-featureandroid:name="android.hardware.camera"/> <uses-featureandroid: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> <actionandroid:name="android.intent.action.MAIN"/> <categoryandroid:name="android.intent.category.LAUNCHER"/> </intent-filter> </activity> </application> </manifest>
android调用相册里的图片并返回
Intentintent=newIntent(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 protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){ System.out.println(resultCode); BitmapcameraBitmap=(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:
AndroidManifest功能与权限描述大全:
http://tools.jb51.net/table/AndroidManifest
更多关于Android相关内容感兴趣的读者可查看本站专题:《Android拍照与图片处理技巧总结》、《Android图形与图像处理技巧总结》、《Android开发入门与进阶教程》、《Android调试技巧与常见问题解决方法汇总》、《Android基本组件用法总结》、《Android视图View技巧总结》、《Android布局layout技巧总结》及《Android控件用法总结》
希望本文所述对大家Android程序设计有所帮助。