如何将位图图像保存到手机的内部存储中 [英] How to save Bitmap image into internal storage of Phone
本文介绍了如何将位图图像保存到手机的内部存储中的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
当我在加载图像并进行编辑后单击保存选项时启动应用程序时，该应用程序停止工作，并且在Logcat中它表明我在MediaStore中存在一些错误。该应用程序仅具有主要活动，并且用于应用过滤器在照片上，然后将它们保存，过滤后的照片是位图文件，然后在保存照片时将其转换为jpg格式。
When I start the app after loading image and editing when I click on save option app stops working and in Logcat it shows that I am having some error in MediaStore This app is having only main activity and it is used to apply a filter on photos and then save them filtered photos are bitmap files and then while saving photo it is converted to jpg format. Thanks!
package edu.harvard.cs50.fiftygram;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.ParcelFileDescriptor;
import android.os.PersistableBundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.ImageView;
import com.bumptech.glide.Glide;
import com.bumptech.glide.load.Transformation;
import com.bumptech.glide.request.RequestOptions;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileNotFoundException;
import java.io.IOException;
import jp.wasabeef.glide.transformations.gpu.SepiaFilterTransformation;
import jp.wasabeef.glide.transformations.gpu.SketchFilterTransformation;
import jp.wasabeef.glide.transformations.gpu.ToonFilterTransformation;
public class MainActivity extends AppCompatActivity implements ActivityCompat.OnRequestPermissionsResultCallback {
@Override public void onCreate(@Nullable Bundle savedInstanceState, @Nullable PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE} ,1);
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] Permission, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, Permission , grantResults);
}
private ImageView imageView;
private Bitmap original;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
imageView = findViewById(R.id.image_view);
}
public void apply(Transformation<Bitmap> filter) {
if (original != null) {
Glide
.with(this)
.load(original)
.apply(RequestOptions.bitmapTransform(filter))
.into(imageView);
}
}
public void applySepia(View view) {
apply(new SepiaFilterTransformation());
}
public void applyToon(View view) {
apply(new ToonFilterTransformation());
}
public void applySketch(View view) {
apply(new SketchFilterTransformation());
}
public void choosePhoto(View view) {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.setType("image/*");
startActivityForResult(intent, 1);
}
public void savePhoto(View view) {
File mFile = new File("/sdcard/temp");
try {
String sav = MediaStore.Images.Media.insertImage(getContentResolver(), mFile.getPath(), "a1.jpg", "Drawing");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK && data != null) {
try {
Uri uri = data.getData();
ParcelFileDescriptor parcelFileDescriptor =
getContentResolver().openFileDescriptor(uri, "r");
FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
original = BitmapFactory.decodeFileDescriptor(fileDescriptor);
parcelFileDescriptor.close();
imageView.setImageBitmap(original);
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
错误
Process: edu.harvard.cs50.fiftygram, PID: 19644
java.lang.IllegalStateException: Could not execute method for android:onClick
at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:402)
at android.view.View.performClick(View.java:7125)
at android.view.View.performClickInternal(View.java:7102)
at android.view.View.access$3500(View.java:801)
at android.view.View$PerformClick.run(View.java:27336)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:397)
at android.view.View.performClick(View.java:7125)
at android.view.View.performClickInternal(View.java:7102)
at android.view.View.access$3500(View.java:801)
at android.view.View$PerformClick.run(View.java:27336)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: java.lang.IllegalArgumentException: MIME type application/octet-stream cannot be inserted into content://media/external/images/media; expected MIME type under image/*
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:170)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:140)
at android.content.ContentProviderProxy.insert(ContentProviderNative.java:481)
at android.content.ContentResolver.insert(ContentResolver.java:1828)
at android.provider.MediaStore.createPending(MediaStore.java:616)
at android.provider.MediaStore$Images$Media.insertImage(MediaStore.java:1736)
at edu.harvard.cs50.fiftygram.MainActivity.savePhoto(MainActivity.java:85)
at java.lang.reflect.Method.invoke(Native Method)
at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:397)
at android.view.View.performClick(View.java:7125)
at android.view.View.performClickInternal(View.java:7102)
at android.view.View.access$3500(View.java:801)
at android.view.View$PerformClick.run(View.java:27336)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
推荐答案
感谢帮助我得到答案
public void savePhoto(View view) {
BitmapDrawable bitmapDrawable = (BitmapDrawable) imageView.getDrawable();
if (bitmapDrawable != null) {
modified = bitmapDrawable.getBitmap();
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
if (shouldShowRequestPermissionRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
Log.d("log as per ur choice ");
showMessageOKCancel("as per ur choice.");
return;
}
Log.d("as per ur choice");
requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);
} else
createDirectoryAndSaveFile(modified, UUID.randomUUID().toString());
} else {
Log.d("savePhoto", "bitmapDrawable is null.");
}
}
这篇关于如何将位图图像保存到手机的内部存储中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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