我正在使用here的ScanLibrary。我已经成功地实现了它，除了Xiomi之外，它在所有设备上都能正常工作。我想知道为什么它不适用于Xiomi。我已经在Marshmallow，Lollipop和其他api上进行了测试，它在所有其他设备上运行良好，只有Xiomi有问题。我也尝试在他们的github页面上报告这个但是没有回复所以我最后的希望是stackoverflow。请注意，我无法弄清楚为什么它不适用于Xiomi。
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.access$900(ActivityThread.java:153)
at android.app.ActivityThread$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)
我遇到错误的库类：
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在Mi设备中崩溃。在此先感谢.. !!
答案 0 :(得分：2)
经过一些尝试，我找到了这个解决方案
我对gradle进行了一些更改，现在它正常工作
在 app gradle.build 中，在 defaultConfig {}
中添加以下这些行defaultConfig{
ndk {
abiFilters "armeabi-v7a", "x86", "armeabi", "mips"
}
}
以及 gradle.properties
中的一些更改 android.useDeprecatedNdk=true
现在它对我有用。我认为这对某人也有帮助