Android编程实现调用相册、相机及拍照后直接裁剪的方法
本文实例讲述了Android编程实现调用相册、相机及拍照后直接裁剪的方法。分享给大家供大家参考，具体如下：
packagecom.cvte.health.phone;
importjava.io.File;
importjava.text.SimpleDateFormat;
importjava.util.Date;
importandroid.app.Activity;
importandroid.content.ContentResolver;
importandroid.content.ContentUris;
importandroid.content.Intent;
importandroid.database.Cursor;
importandroid.graphics.Bitmap;
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;
importcom.cvte.health.AccountManager;
importcom.cvte.health.HealthApplication;
importcom.cvte.health.R;
importcom.cvte.health.api.ImageUpdater;
importcom.cvte.health.database.User;
publicclassChangePortraitActivityextendsActivity{
privateImageViewmImageView;
privateButtonmButtonCamera;
privateButtonmButtonPhoto;
privateButtonmButtonBack;
privateButtonmButtonSave;
privateUsermUser=null;
privateFilemCurrentPhotoFile;
@Override
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_change_portrait);
HealthApplication.getInstance().addActivity(this);
mUser=AccountManager.getInstance().getCurrentUser();
mImageView=(ImageView)this.findViewById(R.id.imageview_preview);
mButtonCamera=(Button)this.findViewById(R.id.button_cameraButton);
mButtonPhoto=(Button)this.findViewById(R.id.button_photoButton);
mButtonBack=(Button)findViewById(R.id.button_back);
mButtonSave=(Button)findViewById(R.id.button_save);
ImageUpdater.getInstance(this).updateUserPhoto(mUser,mImageView);
mButtonCamera.setOnClickListener(newOnClickListener(){
@Override
publicvoidonClick(Viewv){
Intentintent=newIntent("android.media.action.IMAGE_CAPTURE");
mCurrentPhotoFile=newFile("mnt/sdcard/DCIM/Camera/",
getPhotoFileName());
intent.putExtra(MediaStore.EXTRA_OUTPUT,
Uri.fromFile(mCurrentPhotoFile));
startActivityForResult(intent,Activity.DEFAULT_KEYS_DIALER);
/*
*Intentintent=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(newOnClickListener(){
@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",300);
intent.putExtra("outputY",300);
intent.putExtra("return-data",true);
startActivityForResult(intent,11);
}
});
mButtonBack.setOnClickListener(newOnClickListener(){
@Override
publicvoidonClick(Viewv){
finish();
}
});
mButtonSave.setOnClickListener(newOnClickListener(){
@Override
publicvoidonClick(Viewv){
Intentintent=newIntent(ChangePortraitActivity.this,
UserProfileActivity.class);
mImageView.setDrawingCacheEnabled(Boolean.TRUE);
intent.putExtra("BITMAP",mImageView.getDrawingCache());//这里可以放一个bitmap
startActivity(intent);
finish();
overridePendingTransition(R.anim.activity_in_from_left,
R.anim.activity_out_from_right);
}
});
}
@Override
protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){
if(requestCode==10&&resultCode==Activity.RESULT_OK){
mImageView.setImageDrawable(Drawable.createFromPath(newFile(
Environment.getExternalStorageDirectory(),"camera.jpg")
.getAbsolutePath()));
}elseif(requestCode==11&&resultCode==Activity.RESULT_OK){
BitmapcameraBitmap=(Bitmap)data.getExtras().get("data");
mImageView.setImageBitmap(cameraBitmap);
}elseif(requestCode==1&&resultCode==Activity.RESULT_OK){
UriimgUri=MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
ContentResolvercr=ChangePortraitActivity.this
.getContentResolver();
UrifileUri=Uri.fromFile(mCurrentPhotoFile);
sendBroadcast(newIntent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE,
fileUri));
try{
Thread.sleep(3000);
}catch(InterruptedExceptione){
e.printStackTrace();
}
Cursorcursor=cr.query(imgUri,null,
MediaStore.Images.Media.DISPLAY_NAME+"='"
+mCurrentPhotoFile.getName()+"'",null,null);
Uriuri=null;
if(cursor!=null&&cursor.getCount()>0){
cursor.moveToLast();
longid=cursor.getLong(0);
uri=ContentUris.withAppendedId(imgUri,id);
}
finalIntentintent=newIntent("com.android.camera.action.CROP");
intent.setDataAndType(uri,"image/*");
intent.putExtra("crop","true");
intent.putExtra("aspectX",1);
intent.putExtra("aspectY",1);
intent.putExtra("outputX",300);
intent.putExtra("outputY",300);
intent.putExtra("return-data",true);
ChangePortraitActivity.this.startActivityForResult(intent,3);
}elseif(requestCode==3&&resultCode==Activity.RESULT_OK){
BitmapcameraBitmap=(Bitmap)data.getExtras().get("data");
mImageView.setImageBitmap(cameraBitmap);
}
}
privateStringgetPhotoFileName(){
Datedate=newDate(System.currentTimeMillis());
SimpleDateFormatdateFormat=newSimpleDateFormat(
"'IMG'_yyyyMMdd_HHmmss");
returndateFormat.format(date)+".jpg";
}
}
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。