[英]getBitmap deprecated in API 29 java android
I am developing an android application I want user to select an image from gallery. 我正在开发一个Android应用程序,我希望用户从库中选择一个图像。 But I have seen that getBitmap
is deprecated on API 29 但我已经看到在API 29上不推荐使用getBitmap
I have tried ImageDecoder.decodeBitmap(Imagedecoder.createSource())
but it crashes the application 我试过ImageDecoder.decodeBitmap(Imagedecoder.createSource())
但它崩溃了应用程序
if (requestCode == GALLERY){
if (data != null) {
Uri contentURI = data.getData();
try {
if (contentURI!=null){
bitmap = ImageDecoder.decodeBitmap(ImageDecoder.createSource(getContentResolver(), contentURI));
Toast.makeText(getApplicationContext(), "Image Saved!", Toast.LENGTH_SHORT).show();
pic.setImageBitmap(bitmap);
}
dialog.show();
} catch (Exception e){
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Failed!", Toast.LENGTH_SHORT).show();
}
}
}
I am not getting that why app is crashing. 我不知道app崩溃的原因。
here is crash log 这是崩溃日志
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/graphics/ImageDecoder;
at com.example.myapplication.ProfileView.onActivityResult(ProfileView.java:313)
at android.app.Activity.dispatchActivityResult(Activity.java:6223)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3632)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3679)
at android.app.ActivityThread.access$1300(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1358)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5354)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.graphics.ImageDecoder" on path: DexPathList[[zip file "/data/app/com.example.myapplication-1/base.apk", zip file "/data/app/com.example.myapplication-1/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.myapplication-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at com.example.myapplication.ProfileView.onActivityResult(ProfileView.java:313)
at android.app.Activity.dispatchActivityResult(Activity.java:6223)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3632)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3679)
at android.app.ActivityThread.access$1300(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1358)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5354)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
Suppressed: java.lang.ClassNotFoundException: android.graphics.ImageDecoder
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 14 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
From Documentation of public static Bitmap getBitmap (ContentResolver cr, Uri url) 来自公共静态位图getBitmap的文档(ContentResolver cr,Uri url)
This method was deprecated in API level 29. loading of images should be performed through ImageDecoder#createSource(ContentResolver, Uri) , which offers modern features like PostProcessor . 此方法在API级别29中已弃用。应通过ImageDecoder#createSource(ContentResolver,Uri)执行图像加载,后者提供PostProcessor等现代功能。
Example algorithm can be 算例可以是
if (android.os.Build.VERSION.SDK_INT >= 29){
// To handle deprication use
ImageDecoder.decodeBitmap(Imagedecoder.createSource())
} else{
// Use older version
MediaStore.Images.Media.getBitmap(contentResolver, imageUri)
}
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