Android打开手机相册获取图片路径

2023-08-24 05:55:07 60

本文实例为大家分享了Android打开手机相册获取图片路径的具体代码，供大家参考，具体内容如下

根据打开相机返回的Uriuri=data.getData();获取该相片的真正SD卡路径！

权限

动态申请权限

String[]mPermissionList=newString[]{
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.READ_EXTERNAL_STORAGE};
publicstaticfinalintREQUEST_PICK_IMAGE=11101;

打开手机相册

ActivityCompat.requestPermissions(MainActivity.this,mPermissionList,100);

@Override
publicvoidonRequestPermissionsResult(intrequestCode,@NonNullString[]permissions,@NonNullint[]grantResults){
super.onRequestPermissionsResult(requestCode,permissions,grantResults);
switch(requestCode){
case100:
booleanwriteExternalStorage=grantResults[0]==PackageManager.PERMISSION_GRANTED;
booleanreadExternalStorage=grantResults[1]==PackageManager.PERMISSION_GRANTED;
if(grantResults.length>0&&writeExternalStorage&&readExternalStorage){
getImage();
}else{
Toast.makeText(this,"请设置必要权限",Toast.LENGTH_SHORT).show();
}

break;
}
}

privatevoidgetImage(){
if(Build.VERSION.SDK_INT
获取相册返回的Uri


@Override
protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){
super.onActivityResult(requestCode,resultCode,data);
if(resultCode==Activity.RESULT_OK){
switch(requestCode){
caseREQUEST_PICK_IMAGE:
if(data!=null){
StringrealPathFromUri=RealPathFromUriUtils.getRealPathFromUri(this,data.getData());
}else{
Toast.makeText(this,"图片损坏，请重新选择",Toast.LENGTH_SHORT).show();
}

break;
}
}
}
这里的data.getData()返回的就是Uri，realPathFromUri为真正路径
获取真正路径
packagecom.example.richeditortest;

importandroid.annotation.SuppressLint;
importandroid.content.ContentUris;
importandroid.content.Context;
importandroid.database.Cursor;
importandroid.net.Uri;
importandroid.os.Build;
importandroid.provider.DocumentsContract;
importandroid.provider.MediaStore;

publicclassRealPathFromUriUtils{
/**
*根据Uri获取图片的绝对路径
*
*@paramcontext上下文对象
*@paramuri图片的Uri
*@return如果Uri对应的图片存在,那么返回该图片的绝对路径,否则返回null
*/
publicstaticStringgetRealPathFromUri(Contextcontext,Uriuri){
intsdkVersion=Build.VERSION.SDK_INT;
if(sdkVersion>=19){//api>=19
returngetRealPathFromUriAboveApi19(context,uri);
}else{//api<19
returngetRealPathFromUriBelowAPI19(context,uri);
}
}

/**
*适配api19以下(不包括api19),根据uri获取图片的绝对路径
*
*@paramcontext上下文对象
*@paramuri图片的Uri
*@return如果Uri对应的图片存在,那么返回该图片的绝对路径,否则返回null
*/
privatestaticStringgetRealPathFromUriBelowAPI19(Contextcontext,Uriuri){
returngetDataColumn(context,uri,null,null);
}

/**
*适配api19及以上,根据uri获取图片的绝对路径
*
*@paramcontext上下文对象
*@paramuri图片的Uri
*@return如果Uri对应的图片存在,那么返回该图片的绝对路径,否则返回null
*/
@SuppressLint("NewApi")
privatestaticStringgetRealPathFromUriAboveApi19(Contextcontext,Uriuri){
StringfilePath=null;
if(DocumentsContract.isDocumentUri(context,uri)){
//如果是document类型的uri,则通过documentid来进行处理
StringdocumentId=DocumentsContract.getDocumentId(uri);
if(isMediaDocument(uri)){//MediaProvider
//使用':'分割
Stringid=documentId.split(":")[1];

Stringselection=MediaStore.Images.Media._ID+"=?";
String[]selectionArgs={id};
filePath=getDataColumn(context,MediaStore.Images.Media.EXTERNAL_CONTENT_URI,selection,selectionArgs);
}elseif(isDownloadsDocument(uri)){//DownloadsProvider
UricontentUri=ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),Long.valueOf(documentId));
filePath=getDataColumn(context,contentUri,null,null);
}
}elseif("content".equalsIgnoreCase(uri.getScheme())){
//如果是content类型的Uri
filePath=getDataColumn(context,uri,null,null);
}elseif("file".equals(uri.getScheme())){
//如果是file类型的Uri,直接获取图片对应的路径
filePath=uri.getPath();
}
returnfilePath;
}

/**
*获取数据库表中的_data列，即返回Uri对应的文件路径
*
*@return
*/
privatestaticStringgetDataColumn(Contextcontext,Uriuri,Stringselection,String[]selectionArgs){
Stringpath=null;

String[]projection=newString[]{MediaStore.Images.Media.DATA};
Cursorcursor=null;
try{
cursor=context.getContentResolver().query(uri,projection,selection,selectionArgs,null);
if(cursor!=null&&cursor.moveToFirst()){
intcolumnIndex=cursor.getColumnIndexOrThrow(projection[0]);
path=cursor.getString(columnIndex);
}
}catch(Exceptione){
if(cursor!=null){
cursor.close();
}
}
returnpath;
}

/**
*@paramuritheUritocheck
*@returnWhethertheUriauthorityisMediaProvider
*/
privatestaticbooleanisMediaDocument(Uriuri){
return"com.android.providers.media.documents".equals(uri.getAuthority());
}

/**
*@paramuritheUritocheck
*@returnWhethertheUriauthorityisDownloadsProvider
*/
privatestaticbooleanisDownloadsDocument(Uriuri){
return"com.android.providers.downloads.documents".equals(uri.getAuthority());
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

Android打开手机相册获取图片路径

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