Android实现调用系统图库与相机设置头像并保存在本地及服务器

2024-02-28 06:29:04 146
废话不多说了，直接给大家贴代码了，具体代码如下所述：
/**
*1、实现原理:用户打开相册或相机选择相片后,相片经过压缩并设置在控件上,图片在本地sd卡存一份(如果有的话,没有则内部存储,所以还
*需要判断用户是否挂载了sd卡),然后在服务器上存储一份该图片,当下次再次启动应用时,会默认去sd卡加载该图片,如果本地没有,再会去联网请求
*2、使用了picasso框架以及自定义BitmapUtils工具类
*3、记得加上相关权限
*


**/
publicclassMainActivityextendsAppCompatActivityimplementsView.OnClickListener{
privateImageViewiv;//要设置的头像
privateButtonbtn_photo;//调用相册按钮
privateButtonbtn_camera;//调用相机按钮
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv=(ImageView)findViewById(R.id.iv);
btn_photo=(Button)findViewById(R.id.btn_photo);
btn_camera=(Button)findViewById(R.id.btn_camera);
btn_photo.setOnClickListener(this);
btn_camera.setOnClickListener(this);
}
@Override
publicvoidonClick(Viewv){
switch(v.getId()){
caseR.id.btn_photo://打开系统相册
Intentintent=newIntent(Intent.ACTION_PICK,MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent,100);
break;
caseR.id.btn_camera://打开系统相机
Intentintent2=newIntent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent2,200);
break;
}
}
@RequiresApi(api=Build.VERSION_CODES.KITKAT)
@Override
protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){
super.onActivityResult(requestCode,resultCode,data);
if(requestCode==100&&resultCode==RESULT_OK&&data!=null){//系统相册
UriimageData=data.getData();
Stringpath=getPath(imageData);
Bitmapbitmap=BitmapFactory.decodeFile(path);
Bitmapbitmap1=BitmapUtils.zoom(bitmap,iv.getWidth(),iv.getHeight());
Bitmapbitmap2=BitmapUtils.circleBitmap(bitmap1);
//加载显示
iv.setImageBitmap(bitmap2);
//bitmap图片上传到服务器......
//bitmap图片保存到本地
saveImage(bitmap2);
}elseif(requestCode==200&&resultCode==RESULT_OK&&data!=null){//系统相机
Bitmapbitmap=(Bitmap)data.getExtras().get("data");
BitmapUtils.zoom(bitmap,iv.getWidth(),iv.getHeight());
bitmap=BitmapUtils.circleBitmap(bitmap);
//加载显示
iv.setImageBitmap(bitmap);
//bitmap图片上传到服务器......
//bitmap图片保存到本地
saveImage(bitmap);
}
}
/**
*数据的存储。（5种）
*Bimap:内存层面的图片对象。
*
*存储--->内存：
*BitmapFactory.decodeFile(StringfilePath);
*BitmapFactory.decodeStream(InputStreamis);
*内存--->存储：
*bitmap.compress(Bitmap.CompressFormat.PNG,100,OutputStreamos);
*/
privatevoidsaveImage(Bitmapbitmap){
FilefilesDir;
if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){//判断sd卡是否挂载
//路径1：storage/sdcard/Android/data/包名/files
filesDir=this.getExternalFilesDir("");
}else{//手机内部存储
//路径：data/data/包名/files
filesDir=this.getFilesDir();
}
FileOutputStreamfos=null;
try{
Filefile=newFile(filesDir,"icon.png");
fos=newFileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG,100,fos);
}catch(FileNotFoundExceptione){
e.printStackTrace();
}finally{
if(fos!=null){
try{
fos.close();
}catch(IOExceptione){
e.printStackTrace();
}
}
}
}
//如果本地有,就不需要再去联网去请求
privatebooleanreadImage(){
FilefilesDir;
if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){//判断sd卡是否挂载
//路径1：storage/sdcard/Android/data/包名/files
filesDir=getExternalFilesDir("");
}else{//手机内部存储
//路径：data/data/包名/files
filesDir=getFilesDir();
}
Filefile=newFile(filesDir,"icon.png");
if(file.exists()){
//存储--->内存
Bitmapbitmap=BitmapFactory.decodeFile(file.getAbsolutePath());
iv.setImageBitmap(bitmap);
returntrue;
}
returnfalse;
}
@RequiresApi(api=Build.VERSION_CODES.KITKAT)
privateStringgetPath(Uriuri){
intsdkVersion=Build.VERSION.SDK_INT;
//高于4.4.2的版本
if(sdkVersion>=19){
Log.e("TAG","uriauth:"+uri.getAuthority());
if(isExternalStorageDocument(uri)){
StringdocId=DocumentsContract.getDocumentId(uri);
String[]split=docId.split(":");
Stringtype=split[0];
if("primary".equalsIgnoreCase(type)){
returnEnvironment.getExternalStorageDirectory()+"/"+split[1];
}
}elseif(isDownloadsDocument(uri)){
finalStringid=DocumentsContract.getDocumentId(uri);
finalUricontentUri=ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),
Long.valueOf(id));
returngetDataColumn(this,contentUri,null,null);
}elseif(isMediaDocument(uri)){
finalStringdocId=DocumentsContract.getDocumentId(uri);
finalString[]split=docId.split(":");
finalStringtype=split[0];
UricontentUri=null;
if("image".equals(type)){
contentUri=MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
}elseif("video".equals(type)){
contentUri=MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
}elseif("audio".equals(type)){
contentUri=MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
finalStringselection="_id=?";
finalString[]selectionArgs=newString[]{split[1]};
returngetDataColumn(this,contentUri,selection,selectionArgs);
}elseif(isMedia(uri)){
String[]proj={MediaStore.Images.Media.DATA};
Cursoractualimagecursor=this.managedQuery(uri,proj,null,null,null);
intactual_image_column_index=actualimagecursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
actualimagecursor.moveToFirst();
returnactualimagecursor.getString(actual_image_column_index);
}
}elseif("content".equalsIgnoreCase(uri.getScheme())){
//Returntheremoteaddress
if(isGooglePhotosUri(uri))
returnuri.getLastPathSegment();
returngetDataColumn(this,uri,null,null);
}
//File
elseif("file".equalsIgnoreCase(uri.getScheme())){
returnuri.getPath();
}
returnnull;
}
/**
*uri路径查询字段
*
*@paramcontext
*@paramuri
*@paramselection
*@paramselectionArgs
*@return
*/
publicstaticStringgetDataColumn(Contextcontext,Uriuri,Stringselection,String[]selectionArgs){
Cursorcursor=null;
finalStringcolumn="_data";
finalString[]projection={column};
try{
cursor=context.getContentResolver().query(uri,projection,selection,selectionArgs,null);
if(cursor!=null&&cursor.moveToFirst()){
finalintindex=cursor.getColumnIndexOrThrow(column);
returncursor.getString(index);
}
}finally{
if(cursor!=null)
cursor.close();
}
returnnull;
}
privatebooleanisExternalStorageDocument(Uriuri){
return"com.android.externalstorage.documents".equals(uri.getAuthority());
}
publicstaticbooleanisDownloadsDocument(Uriuri){
return"com.android.providers.downloads.documents".equals(uri.getAuthority());
}
publicstaticbooleanisMediaDocument(Uriuri){
return"com.android.providers.media.documents".equals(uri.getAuthority());
}
publicstaticbooleanisMedia(Uriuri){
return"media".equals(uri.getAuthority());
}
/**
*@paramuriTheUritocheck.
*@returnWhethertheUriauthorityisGooglePhotos.
*/
publicstaticbooleanisGooglePhotosUri(Uriuri){
return"com.google.android.apps.photos.content".equals(uri.getAuthority());
}
/**
*判断本地是否有该图片,没有则去联网请求
**/
@Override
protectedvoidonResume(){
super.onResume();
if(readImage()){
return;
}
}
}
//BitmapUtils工具类publicclassBitmapUtils{/**
*该方法用于将图片进行圆形处理
**/publicstaticBitmapcircleBitmap(Bitmapsource){//默认只对宽进行处理intwidth=source.getWidth();Bitmapbitmap=Bitmap.createBitmap(width,width,Bitmap.Config.ARGB_8888);Canvascanvas=newCanvas(bitmap);Paintpaint=newPaint();//设置抗锯齿paint.setAntiAlias(true);canvas.drawCircle(width/2,width/2,width/2,paint);paint.setXfermode(newPorterDuffXfermode(PorterDuff.Mode.SRC_IN));canvas.drawBitmap(source,0,0,paint);returnbitmap;}/***该方法用于图片压缩处理,注意width、height参数的类型必须是float**/publicstaticBitmapzoom(Bitmapsource,floatwidth,floatheight){Matrixmatrix=newMatrix();//图片进行压缩处理matrix.postScale(width/source.getWidth(),height/source.getHeight());Bitmapbitmap=Bitmap.createBitmap(source,0,0,source.getWidth(),source.getHeight(),matrix,false);returnbitmap;}}
以上所述是小编给大家介绍的Android实现调用系统图库与相机设置头像并保存在本地及服务器，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！
Android实现调用系统图库与相机设置头像并保存在本地及服务器

热门推荐

随机推荐
