Android 扫描库在小米上崩溃
Android Scanlibrary crashing on Xiomi
我正在使用 here 的 ScanLibrary。我已经成功地实现了这一点，它在除 Xiomi 之外的所有设备上都运行良好。我想知道为什么它不适用于 Xiomi。我也在 Marshmallow、Lollipop 和其他 api 上测试过它，它在所有其他设备上运行良好，只有 Xiomi 有问题。我也试图在他们的 github 页面上报告这一点，但没有得到回复，所以我最后的希望是 Whosebug。请看，我无法弄清楚为什么它在 Xiomi 上不起作用。
我在 Xiomi 设备上遇到以下异常：
05-18 15:33:33.504 21553-21553/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.vikast.includelibrariesdemo, PID: 21553
java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.example.vikast.includelibrariesdemo-2/base.apk"],nativeLibraryDirectories=[/data/app/com.example.vikast.includelibrariesdemo-2/lib/arm64, /data/app/com.example.vikast.includelibrariesdemo-2/base.apk!/lib/arm64-v8a, /vendor/lib64, /system/lib64]]] couldn't find "libopencv_java3.so"
at java.lang.Runtime.loadLibrary(Runtime.java:367)
at java.lang.System.loadLibrary(System.java:1076)
at com.scanlibrary.ScanActivity.<clinit>(ScanActivity.java:125)
at java.lang.Class.newInstance(Native Method)
at android.app.Instrumentation.newActivity(Instrumentation.java:1068)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2324)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2483)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1349)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5441)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:738)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:628)
库 class 出现错误：
ScanActivity.java
package com.scanlibrary;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.FragmentTransaction;
import android.content.ComponentCallbacks2;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
/**
* Created by jhansi on 28/03/15.
*/
public class ScanActivity extends Activity implements IScanner, ComponentCallbacks2 {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.scan_layout);
init();
}
private void init() {
PickImageFragment fragment = new PickImageFragment();
Bundle bundle = new Bundle();
bundle.putInt(ScanConstants.OPEN_INTENT_PREFERENCE, getPreferenceContent());
fragment.setArguments(bundle);
android.app.FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.content, fragment);
fragmentTransaction.commit();
}
protected int getPreferenceContent() {
return getIntent().getIntExtra(ScanConstants.OPEN_INTENT_PREFERENCE, 0);
}
@Override
public void onBitmapSelect(Uri uri) {
ScanFragment fragment = new ScanFragment();
Bundle bundle = new Bundle();
bundle.putParcelable(ScanConstants.SELECTED_BITMAP, uri);
fragment.setArguments(bundle);
android.app.FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.content, fragment);
fragmentTransaction.addToBackStack(ScanFragment.class.toString());
fragmentTransaction.commit();
}
@Override
public void onScanFinish(Uri uri) {
ResultFragment fragment = new ResultFragment();
Bundle bundle = new Bundle();
bundle.putParcelable(ScanConstants.SCANNED_RESULT, uri);
fragment.setArguments(bundle);
android.app.FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.content, fragment);
fragmentTransaction.addToBackStack(ResultFragment.class.toString());
fragmentTransaction.commit();
}
@Override
public void onTrimMemory(int level) {
switch (level) {
case ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN:
/*
Release any UI objects that currently hold memory.
The user interface has moved to the background.
*/
break;
case ComponentCallbacks2.TRIM_MEMORY_RUNNING_MODERATE:
case ComponentCallbacks2.TRIM_MEMORY_RUNNING_LOW:
case ComponentCallbacks2.TRIM_MEMORY_RUNNING_CRITICAL:
/*
Release any memory that your app doesn't need to run.
The device is running low on memory while the app is running.
The event raised indicates the severity of the memory-related event.
If the event is TRIM_MEMORY_RUNNING_CRITICAL, then the system will
begin killing background processes.
*/
break;
case ComponentCallbacks2.TRIM_MEMORY_BACKGROUND:
case ComponentCallbacks2.TRIM_MEMORY_MODERATE:
case ComponentCallbacks2.TRIM_MEMORY_COMPLETE:
/*
Release as much memory as the process can.
The app is on the LRU list and the system is running low on memory.
The event raised indicates where the app sits within the LRU list.
If the event is TRIM_MEMORY_COMPLETE, the process will be one of
the first to be terminated.
*/
new AlertDialog.Builder(this)
.setTitle(R.string.low_memory)
.setMessage(R.string.low_memory_message)
.create()
.show();
break;
default:
/*
Release any non-critical data structures.
The app received an unrecognized memory level value
from the system. Treat this as a generic low-memory message.
*/
break;
}
}
public native Bitmap getScannedBitmap(Bitmap bitmap, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4);
public native Bitmap getGrayBitmap(Bitmap bitmap);
public native Bitmap getMagicColorBitmap(Bitmap bitmap);
public native Bitmap getBWBitmap(Bitmap bitmap);
public native float[] getPoints(Bitmap bitmap);
//========== GETTING ERROR OVER HERE ================//
static {
System.loadLibrary("opencv_java3"); //========== HERE IS THE ERROR ================//
System.loadLibrary("Scanner");
}
}
请查看是否有任何问题导致我的应用程序在小米设备上崩溃。提前致谢..!!
经过一些尝试我找到了这个解决方案
我对 gradle 做了一些修改，现在可以正常工作了
在 app gradle.build 中添加这些行 defaultConfig{}
defaultConfig{
ndk {
abiFilters "armeabi-v7a", "x86", "armeabi", "mips"
}
}
以及 gradle.properties
中的一些变化
android.useDeprecatedNdk=true
现在对我有用了。我认为它也会对某人有所帮助
我正在使用 here 的 ScanLibrary。我已经成功地实现了这一点，它在除 Xiomi 之外的所有设备上都运行良好。我想知道为什么它不适用于 Xiomi。我也在 Marshmallow、Lollipop 和其他 api 上测试过它，它在所有其他设备上运行良好，只有 Xiomi 有问题。我也试图在他们的 github 页面上报告这一点，但没有得到回复，所以我最后的希望是 Whosebug。请看，我无法弄清楚为什么它在 Xiomi 上不起作用。
我在 Xiomi 设备上遇到以下异常：
05-18 15:33:33.504 21553-21553/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.vikast.includelibrariesdemo, PID: 21553
java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.example.vikast.includelibrariesdemo-2/base.apk"],nativeLibraryDirectories=[/data/app/com.example.vikast.includelibrariesdemo-2/lib/arm64, /data/app/com.example.vikast.includelibrariesdemo-2/base.apk!/lib/arm64-v8a, /vendor/lib64, /system/lib64]]] couldn't find "libopencv_java3.so"
at java.lang.Runtime.loadLibrary(Runtime.java:367)
at java.lang.System.loadLibrary(System.java:1076)
at com.scanlibrary.ScanActivity.<clinit>(ScanActivity.java:125)
at java.lang.Class.newInstance(Native Method)
at android.app.Instrumentation.newActivity(Instrumentation.java:1068)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2324)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2483)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1349)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5441)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:738)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:628)
库 class 出现错误：
ScanActivity.java
package com.scanlibrary;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.FragmentTransaction;
import android.content.ComponentCallbacks2;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
/**
* Created by jhansi on 28/03/15.
*/
public class ScanActivity extends Activity implements IScanner, ComponentCallbacks2 {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.scan_layout);
init();
}
private void init() {
PickImageFragment fragment = new PickImageFragment();
Bundle bundle = new Bundle();
bundle.putInt(ScanConstants.OPEN_INTENT_PREFERENCE, getPreferenceContent());
fragment.setArguments(bundle);
android.app.FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.content, fragment);
fragmentTransaction.commit();
}
protected int getPreferenceContent() {
return getIntent().getIntExtra(ScanConstants.OPEN_INTENT_PREFERENCE, 0);
}
@Override
public void onBitmapSelect(Uri uri) {
ScanFragment fragment = new ScanFragment();
Bundle bundle = new Bundle();
bundle.putParcelable(ScanConstants.SELECTED_BITMAP, uri);
fragment.setArguments(bundle);
android.app.FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.content, fragment);
fragmentTransaction.addToBackStack(ScanFragment.class.toString());
fragmentTransaction.commit();
}
@Override
public void onScanFinish(Uri uri) {
ResultFragment fragment = new ResultFragment();
Bundle bundle = new Bundle();
bundle.putParcelable(ScanConstants.SCANNED_RESULT, uri);
fragment.setArguments(bundle);
android.app.FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.content, fragment);
fragmentTransaction.addToBackStack(ResultFragment.class.toString());
fragmentTransaction.commit();
}
@Override
public void onTrimMemory(int level) {
switch (level) {
case ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN:
/*
Release any UI objects that currently hold memory.
The user interface has moved to the background.
*/
break;
case ComponentCallbacks2.TRIM_MEMORY_RUNNING_MODERATE:
case ComponentCallbacks2.TRIM_MEMORY_RUNNING_LOW:
case ComponentCallbacks2.TRIM_MEMORY_RUNNING_CRITICAL:
/*
Release any memory that your app doesn't need to run.
The device is running low on memory while the app is running.
The event raised indicates the severity of the memory-related event.
If the event is TRIM_MEMORY_RUNNING_CRITICAL, then the system will
begin killing background processes.
*/
break;
case ComponentCallbacks2.TRIM_MEMORY_BACKGROUND:
case ComponentCallbacks2.TRIM_MEMORY_MODERATE:
case ComponentCallbacks2.TRIM_MEMORY_COMPLETE:
/*
Release as much memory as the process can.
The app is on the LRU list and the system is running low on memory.
The event raised indicates where the app sits within the LRU list.
If the event is TRIM_MEMORY_COMPLETE, the process will be one of
the first to be terminated.
*/
new AlertDialog.Builder(this)
.setTitle(R.string.low_memory)
.setMessage(R.string.low_memory_message)
.create()
.show();
break;
default:
/*
Release any non-critical data structures.
The app received an unrecognized memory level value
from the system. Treat this as a generic low-memory message.
*/
break;
}
}
public native Bitmap getScannedBitmap(Bitmap bitmap, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4);
public native Bitmap getGrayBitmap(Bitmap bitmap);
public native Bitmap getMagicColorBitmap(Bitmap bitmap);
public native Bitmap getBWBitmap(Bitmap bitmap);
public native float[] getPoints(Bitmap bitmap);
//========== GETTING ERROR OVER HERE ================//
static {
System.loadLibrary("opencv_java3"); //========== HERE IS THE ERROR ================//
System.loadLibrary("Scanner");
}
}
请查看是否有任何问题导致我的应用程序在小米设备上崩溃。提前致谢..!!
经过一些尝试我找到了这个解决方案
我对 gradle 做了一些修改，现在可以正常工作了
在 app gradle.build 中添加这些行 defaultConfig{}
defaultConfig{
ndk {
abiFilters "armeabi-v7a", "x86", "armeabi", "mips"
}
}
以及 gradle.properties
中的一些变化android.useDeprecatedNdk=true
现在对我有用了。我认为它也会对某人有所帮助