说实话调用相册我觉得是一件很麻烦的事情,但是在总结完了之后发现也不过如此,就复制代码就完了
添加几个依赖(其中第三行我添加的是圆形图标的依赖如果你不用就不用加)
implementation 'com.github.bumptech.glide:glide:4.8.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
api 'de.hdodenhof:circleimageview:2.2.0'
implementation 'com.zhihu.android:matisse:0.4.3'
implementation 'pub.devrel:easypermissions:1.2.0'
然后当前活动implement一下
EasyPermissions.PermissionCallbacks
一般你们用的是ImageView,我这里头像用的是圆形头像,不用圆形头像的改成ImageView就行了
private CircleImageView circleImageView;
private String[] permissions = {Manifest.permission.WRITE_EXTERNAL_STORAGE};
String photoPath = null;
case R.id.circle_image:
//调用相册
getPermission();
goPhotoAlbum();
break;
点击事件别忘了
circleImageView.setOnClickListener(this);
private void goPhotoAlbum() {
Intent intent = new Intent();
intent.setAction(Intent.ACTION_PICK);
intent.setType("image/*");
startActivityForResult(intent, 2);
}
private void getPermission() {
if (EasyPermissions.hasPermissions(this, permissions)) {
//已经打开权限
Toast.makeText(this, "已经申请相关权限", Toast.LENGTH_SHORT).show();
} else {
//没有打开相关权限、申请权限
EasyPermissions.requestPermissions(this, "需要获取您的相册权限", 1, permissions);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
//框架要求必须这么写
EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
}
@Override
public void onPermissionsGranted(int requestCode, @NonNull List<String> perms) {
}
@Override
public void onPermissionsDenied(int requestCode, @NonNull List<String> perms) {
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 2 && resultCode == RESULT_OK) {
photoPath = getPhotoFromPhotoAlbum.getRealPathFromUri(this, data.getData());
Glide.with(AddStudent.this).load(photoPath).into(circleImageView);
}
super.onActivityResult(requestCode, resultCode, data);
}
这里还有一个将uri地址转换为绝对地址的工具类
public class getPhotoFromPhotoAlbum {
/**
* 根据Uri获取图片的绝对路径
*
* @param context 上下文对象
* @param uri 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
*/
public static String getRealPathFromUri(Context context, Uri uri) {
int sdkVersion = Build.VERSION.SDK_INT;
if (sdkVersion >= 19) {
return getRealPathFromUriAboveApi19(context, uri);
} else {
return getRealPathFromUriBelowAPI19(context, uri);
}
}
/**
* 适配api19以下(不包括api19),根据uri获取图片的绝对路径
*
* @param context 上下文对象
* @param uri 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
*/
private static String getRealPathFromUriBelowAPI19(Context context, Uri uri) {
return getDataColumn(context, uri, null, null);
}
/**
* 适配api19及以上,根据uri获取图片的绝对路径
*
* @param context 上下文对象
* @param uri 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")
private static String getRealPathFromUriAboveApi19(Context context, Uri uri) {
String filePath = null;
if (DocumentsContract.isDocumentUri(context, uri)) {
// 如果是document类型的 uri, 则通过document id来进行处理
String documentId = DocumentsContract.getDocumentId(uri);
if (isMediaDocument(uri)) {
// 使用':'分割
String id = documentId.split(":")[1];
String selection = MediaStore.Images.Media._ID + "=?";
String[] selectionArgs = {id};
filePath = getDataColumn(context, MediaStore.Images.Media.EXTERNAL_CONTENT_URI, selection, selectionArgs);
} else if (isDownloadsDocument(uri)) {
Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(documentId));
filePath = getDataColumn(context, contentUri, null, null);
}
} else if ("content".equalsIgnoreCase(uri.getScheme())) {
// 如果是 content 类型的 Uri
filePath = getDataColumn(context, uri, null, null);
} else if ("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();
}
return filePath;
}
/**
* 获取数据库表中的 _data 列，即返回Uri对应的文件路径
*
*/
private static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
String path = null;
String[] projection = new String[]{MediaStore.Images.Media.DATA};
Cursor cursor = null;
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
int columnIndex = cursor.getColumnIndexOrThrow(projection[0]);
path = cursor.getString(columnIndex);
}
} catch (Exception e) {
if (cursor != null) {
cursor.close();
}
}
return path;
}
/**
* @param uri the Uri to check
* @return Whether the Uri authority is MediaProvider
*/
private static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
/**
* @param uri the Uri to check
* @return Whether the Uri authority is DownloadsProvider
*/
private static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
}
最后还需要一个xml文件是path的,这个xml文件必须先在res之下新建一个xml包,然后放进去代码
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path name="external_files" path="."/>
</paths>
大功告成,代码复制就完事了
