介绍//点击图片保存
imageView.setOnClickListener (new View.OnClickListener (), {
@Override才能
public 才能;void onClick (View v), {
,,,String [], PERMISSIONS =, {
,,,,,,,“android.permission.READ_EXTERNAL_STORAGE",
,,,,,,,“android.permission.WRITE_EXTERNAL_STORAGE",};
,,,//检测是否有写的权限
,,,int permission =, ContextCompat.checkSelfPermission (MainActivity.this,
,,,,,,,“android.permission.WRITE_EXTERNAL_STORAGE");
,,,if (permission !=, PackageManager.PERMISSION_GRANTED), {
,,,,,//,没有写的权限,去申请写的权限,会弹出对话框
,,,,,ActivityCompat.requestPermissions (MainActivity.this,权限,1);
,,,}
,,,try {
,,,,,//创建savephoto类保存图片
,,,,,SavePhoto SavePhoto =, new SavePhoto (MainActivity.this);
,,,,,savePhoto.SaveBitmapFromView (imageView);
,,,},catch (ParseException e), {
,,,,,e.printStackTrace ();
,,,}
,,}
}); public class SavePhoto {//存才能调用该类的活动
Context 才能;语境;
public 才能SavePhoto (Context 上下文),{
,,,this.context =,上下文;
,,}//才能保存文件的方法:
public 才能;void SaveBitmapFromView (View 视图),throws ParseException {
,,,int w =, view.getWidth ();
,,,int h =, view.getHeight ();
,,,Bitmap bmp =, Bitmap.createBitmap (w, h, Bitmap.Config.ARGB_8888);
,,,Canvas c =, new 画布(bmp);
,,,view.layout (0, 0, w, h);
,,,view.draw (c);
,,,//,缩小图片
,,,Matrix Matrix =, new 矩阵();
,,,matrix.postScale (0.5 0.5 f, f);,//长和宽放大缩小的比例
,,,bmp =, Bitmap.createBitmap (bmp, 0, 0, bmp.getWidth (), bmp.getHeight(),矩阵,true);
,,,DateFormat format =, new SimpleDateFormat (“yyyyMMddHHmmss");
,,,saveBitmap (bmp, bmp.toString (), +,“.JPEG");
,,}
,/*
,,*,保存文件,文件名为当前日期
,,*/public 才能;void saveBitmap (Bitmap ,位图,String bitName) {
,,,String fileName ;
,,,File File ;
,,,如果(Build.BRAND .equals (“Xiaomi"),){//大敌;小米手机
,,,,,fileName =, Environment.getExternalStorageDirectory () .getPath () +“/DCIM/相机/? bitName ;
还有,,,}{//大敌;Meizu ,朋友
,,,,,Log.v (“qwe",“002“);
,,,,,fileName =, Environment.getExternalStorageDirectory () .getPath () +“DCIM/? bitName ;
,,,}
,,,file =, new 文件(文件名);
,,,如果(file.exists ()) {
,,,,,file.delete ();
,,,}
,,,FileOutputStream ;
,,,试着{
,,,,,out =, new FileOutputStream(文件);
,,,,,//,格式为,JPEG,照相机拍出的图片为JPEG格式的,PNG格式的不能显示在相册中
,,,,,如果(bitmap.compress (Bitmap.CompressFormat.JPEG,, 90,,))
,,,,,{
,,,,,,,out.flush ();
,,,,,,,out.close ();
,,,,,,,//,插入图库
,,,,,,,MediaStore.Images.Media.insertImage (context.getContentResolver (),, file.getAbsolutePath (),, bitName,, null);
,,,,,}
,,,}
,,,catch (FileNotFoundException e)
,,,{
,,,,,e.printStackTrace ();
,,,}
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这篇文章将为大家详细讲解有关怎么在Android中将图片保存到相册,文章内容质量较高,因此小编分享给大家做个参考,希望大家阅读完这篇文章后对相关知识有一定的了解。
调用<代码> savephoto的SaveBitmapFromView(查看视图),方法自动保存图片
SavePhoto类具体实现
参考自:https://www.jb51.net/article/158635.htm
但原博主部分代码有误我稍加了修改
