Android 中的 execv(/system/bin/dex2oat) 失败
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【中文标题】Android 中的 execv(/system/bin/dex2oat) 失败【英文标题】：Failed execv(/system/bin/dex2oat ) in Android 【发布时间】：2017-09-01 04:57:00 【问题描述】：activity_main_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main_menu_layout"
android:layout_
android:layout_
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="fyp.hkust.facet.activity.MainMenuActivity"
android:background="@drawable/background_dark_circle">
<ImageButton
android:layout_
android:layout_
android:background="@mipmap/ic_location_on_white_36dp"
android:id="@+id/store_button"
android:layout_below="@+id/photo_camera"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<ImageButton
android:layout_
android:layout_
android:background="@mipmap/ic_favorite_white_36dp"
android:id="@+id/fav_button"
android:layout_below="@+id/photo_camera"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<TextView
android:id="@+id/location_text"
android:layout_
android:layout_
android:gravity="center"
android:text="@string/store_text"
android:textColor="#FFFFFF"
android:textStyle="bold"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignRight="@+id/store_button"
android:layout_alignEnd="@+id/store_button"
android:layout_below="@+id/store_button" />
<TextView
android:id="@+id/fav_text"
android:layout_
android:layout_
android:gravity="center"
android:text="@string/favourite_text"
android:textColor="#FFFFFF"
android:textStyle="bold"
android:layout_below="@+id/fav_button"
android:layout_alignLeft="@+id/fav_button"
android:layout_alignStart="@+id/fav_button" />
<TextView
android:id="@+id/account_text"
android:layout_
android:layout_
android:gravity="center"
android:text="@string/my_account_text"
android:textColor="#FFFFFF"
android:textStyle="bold"
android:layout_below="@+id/account_button"
android:layout_alignLeft="@+id/account_button"
android:layout_alignStart="@+id/account_button" />
<TextView
android:id="@+id/photo_camera_text"
android:layout_
android:layout_
android:gravity="center"
android:text="@string/facet_match_text"
android:layout_marginLeft="5dp"
android:textColor="#FFFFFF"
android:textStyle="bold"
android:layout_above="@+id/fav_text"
android:layout_centerHorizontal="true"
android:layout_marginBottom="58dp" />
<ImageButton
android:layout_
android:layout_
android:background="@mipmap/ic_photo_camera_white_36dp"
android:id="@+id/photo_camera"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
/>
<ImageButton
android:layout_
android:layout_
android:background="@mipmap/ic_account_circle_white_36dp"
android:id="@+id/account_button"
android:layout_alignTop="@+id/shopping_button"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
/>
<TextView
android:id="@+id/product_text"
android:layout_
android:layout_
android:gravity="center"
android:text="@string/all_products_text"
android:textColor="#FFFFFF"
android:textStyle="bold"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignBottom="@+id/account_text"
android:layout_below="@+id/account_button"
android:layout_alignRight="@+id/shopping_button"
android:layout_alignEnd="@+id/shopping_button" />
<ImageButton
android:layout_
android:layout_
android:background="@mipmap/ic_shopping_basket_white_36dp"
android:id="@+id/shopping_button"
android:layout_marginBottom="15dp"
android:layout_marginLeft="5dp"
android:layout_above="@+id/photo_camera"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
MainMenuActivity.java
public class MainMenuActivity extends AppCompatActivity
private static final String TAG = MainMenuActivity.class.getSimpleName();
private static final int CAM_REQUEST = 3;
private static String[] PERMISSIONS_REQ =
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.CAMERA
;
private static final int REQUEST_CODE_PERMISSION = 2;
private View activity_main_menu_layout;
private ImageButton shoppingBtn;
private ImageButton photoCameraBtn;
private ImageButton accountBtn;
private ImageButton storeBtn;
private static final int GALLERY_REQUEST = 1;
private static int OVERLAY_PERMISSION_REQ_CODE = 3;
private ImageButton favBtn;
private int buttonNumber = 0;
private String captureImageFullPath = null;
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_menu);
activity_main_menu_layout = (RelativeLayout) findViewById(R.id.activity_main_menu_layout);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
Window window = getWindow();
// Translucent status bar
window.setFlags(
WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS,
WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
Typeface fontType = FontManager.getTypeface(getApplicationContext(), FontManager.APP_FONT);
FontManager.markAsIconContainer(findViewById(R.id.activity_main_menu_layout), fontType);
photoCameraBtn = (ImageButton) findViewById(R.id.photo_camera);
shoppingBtn = (ImageButton) findViewById(R.id.shopping_button);
accountBtn = (ImageButton) findViewById(R.id.account_button);
storeBtn = (ImageButton) findViewById(R.id.store_button);
favBtn = (ImageButton) findViewById(R.id.fav_button);
photoCameraBtn.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View view)
showAlertDialog();
);
shoppingBtn.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View view)
Intent Intent = new Intent(MainMenuActivity.this, MainActivity.class);
startActivity(Intent);
);
accountBtn.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View view)
Intent accountIntent = new Intent(MainMenuActivity.this, ProfileActivity.class);
startActivity(accountIntent);
);
storeBtn.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View view)
showMakeUpDialog();
);
favBtn.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View view)
Intent storeIntent = new Intent(MainMenuActivity.this, ShopListActivity.class);
startActivity(storeIntent);
);
// Just use hugo to print log
isExternalStorageWritable();
isExternalStorageReadable();
// For API 23+ you need to request the read/write permissions even if they are already in your manifest.
int currentapiVersion = android.os.Build.VERSION.SDK_INT;
if (currentapiVersion >= Build.VERSION_CODES.M)
verifyPermissions(this);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
if (!Settings.canDrawOverlays(this.getApplicationContext()))
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName()));
startActivityForResult(intent, OVERLAY_PERMISSION_REQ_CODE);
if (!isMyServiceRunning(MyService.class))
startService(new Intent(this, MyService.class));
private void showAlertDialog()
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Choose the way to get your selfie");
builder.setIcon(R.mipmap.app_icon);
builder.setCancelable(true);
final String[] items = new String[]"From Gallery", "Take Photo";
final Integer[] icons = new Integer[]R.mipmap.app_icon, R.mipmap.app_icon;
ListAdapter adapter = new ArrayAdapterWithIcon(getApplication(), items, icons);
builder.setAdapter(adapter, new DialogInterface.OnClickListener()
public void onClick(DialogInterface dialog, int item)
switch (item)
case 0:
buttonNumber = 1;
Intent intent = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, GALLERY_REQUEST);
break;
case 1:
Intent cameraViewIntent = new Intent(MainMenuActivity.this, ShowCameraViewActivity.class);
startActivity(cameraViewIntent);
break;
).show();
private void showMakeUpDialog()
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Choose the way to get your selfie");
builder.setIcon(R.mipmap.app_icon);
builder.setCancelable(true);
final String[] items = new String[]"From Gallery", "Take Photo";
final Integer[] icons = new Integer[]R.mipmap.app_icon, R.mipmap.app_icon;
ListAdapter adapter = new ArrayAdapterWithIcon(getApplication(), items, icons);
builder.setAdapter(adapter, new DialogInterface.OnClickListener()
public void onClick(DialogInterface dialog, int item)
switch (item)
case 0:
buttonNumber = 2;
Intent intent = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, GALLERY_REQUEST);
break;
case 1:
Intent cameraViewIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File file = getFile();
cameraViewIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));
startActivityForResult(cameraViewIntent, CAM_REQUEST);
break;
).show();
private boolean isMyServiceRunning(Class<?> serviceClass)
ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE))
if (serviceClass.getName().equals(service.service.getClassName()))
return true;
return false;
private File getFile()
File folder = new File("sdcard/FaceT");
if (!folder.exists())
folder.mkdir();
String currentDateTimeString = DateFormat.getDateTimeInstance().format(new Date());
captureImageFullPath = folder + "/makeup_" + currentDateTimeString;
File imageFile = new File(captureImageFullPath);
return imageFile;
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == OVERLAY_PERMISSION_REQ_CODE)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
if (!Settings.canDrawOverlays(this.getApplicationContext()))
Snackbar snackbar = Snackbar
.make(activity_main_menu_layout, "CameraActivity\", \"SYSTEM_ALERT_WINDOW, permission not granted...", Snackbar.LENGTH_SHORT);
snackbar.show();
else
Intent intent = getIntent();
finish();
startActivity(intent);
if (requestCode == GALLERY_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null)
Uri pickedImage = data.getData();
Log.d(TAG, "selected!!!" + " : " + pickedImage.getPath());
// Let's read picked image path using content resolver
String[] filePathColumn = MediaStore.Images.Media.DATA;
Cursor cursor = getContentResolver().query(pickedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
Log.d(TAG + "Path:", picturePath);
Intent intent = new Intent();
if (buttonNumber == 1)
intent.setClass(MainMenuActivity.this, CaptureActivity.class);
else if (buttonNumber == 2)
intent.setClass(MainMenuActivity.this, ColorizeFaceActivity.class);
intent.putExtra("path", picturePath);
//intent.putExtra("color" , "" + mBlobColorHsv);
startActivity(intent);
else if (requestCode == CAM_REQUEST)
Intent intent = new Intent();
intent.setClass(MainMenuActivity.this, ColorizeFaceActivity.class);
intent.putExtra("path", captureImageFullPath);
startActivity(intent);
/**
* Checks if the app has permission to write to device storage or open camera
* If the app does not has permission then the user will be prompted to grant permissions
*
* @param activity
*/
private static boolean verifyPermissions(Activity activity)
// Check if we have write permission
int write_permission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
int read_persmission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
int camera_permission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.CAMERA);
if (write_permission != PackageManager.PERMISSION_GRANTED ||
read_persmission != PackageManager.PERMISSION_GRANTED ||
camera_permission != PackageManager.PERMISSION_GRANTED)
// We don't have permission so prompt the user
ActivityCompat.requestPermissions(
activity,
PERMISSIONS_REQ,
REQUEST_CODE_PERMISSION
);
return false;
else
return true;
/* Checks if external storage is available for read and write */
private boolean isExternalStorageWritable()
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state))
return true;
return false;
/* Checks if external storage is available to at least read */
private boolean isExternalStorageReadable()
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state) ||
Environment.MEDIA_MOUNTED_READ_ONLY.equals(state))
return true;
return false;
logcat 中的消息：
04-06 16:47:17.794 934-934/? I/art: 后期启用 -Xcheck:jni 04-06 16:47:17.945 934-934/fyp.hkust.facet W/艺术：执行失败（/system/bin/dex2oat --runtime-arg -classpath --runtime-arg --debuggable --instruction-set =arm --instruction-set-features=smp,div,atomic_ldrd_strd --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/fyp.hkust.facet-2/split_lib_dependencies_apk.apk --oat-file=/data/dalvik -cache/arm/data@app@fyp.hkust.facet-2@split_lib_dependencies_apk.apk@classes.dex) 因为非 0 退出状态 04-06 16:47:18.685 934-934/fyp.hkust.facet W/art: /data/app/fyp.hkust.facet-2/split_lib_dependencies_apk.apk 有超过 100 个 dex 文件。请考虑合并和缩小数字以避免运行时开销。
04-06 16:47:18.851 934-934/fyp.hkust.facet W/art: 失败的 execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg --debuggable --指令集=arm --instruction-set-features=smp,div,atomic_ldrd_strd --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime- arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/fyp.hkust.facet-2/split_lib_slice_0_apk.apk --oat-file=/ data/dalvik-cache/arm/data@app@fyp.hkust.facet-2@split_lib_slice_0_apk.apk@classes.dex) 因为非0退出状态
04-06 16:47:18.919 934-934/fyp.hkust.facet W/art: 失败的 execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg --debuggable --指令集=arm --instruction-set-features=smp,div,atomic_ldrd_strd --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime- arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/fyp.hkust.facet-2/split_lib_slice_1_apk.apk --oat-file=/ data/dalvik-cache/arm/data@app@fyp.hkust.facet-2@split_lib_slice_1_apk.apk@classes.dex) 因为非0退出状态
04-06 16:47:18.995 934-934/fyp.hkust.facet W/art: 失败的 execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg --debuggable --指令集=arm --instruction-set-features=smp,div,atomic_ldrd_strd --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime- arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/fyp.hkust.facet-2/split_lib_slice_2_apk.apk --oat-file=/ data/dalvik-cache/arm/data@app@fyp.hkust.facet-2@split_lib_slice_2_apk.apk@classes.dex) 因为非0退出状态
。 . .
04-06 16:47:19.590 934-934/fyp.hkust.facet W/art: 失败的 execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg --debuggable --指令集=arm --instruction-set-features=smp,div,atomic_ldrd_strd --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime- arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/fyp.hkust.facet-2/split_lib_slice_9_apk.apk --oat-file=/ data/dalvik-cache/arm/data@app@fyp.hkust.facet-2@split_lib_slice_5_apk.apk@classes.dex) 因为非0退出状态
当我进入这个活动时，我的手机需要加载很多我不知道它们是什么的东西（在我的 logcat 中）。我不知道他们是什么意思。任何人都可以解决这个问题吗？非常感谢。
【问题讨论】：
/data/app/fyp.hkust.facet-2/split_lib_dependencies_apk.apk has in excess of 100 dex files. Please consider coalescing and shrinking the number to avoid runtime overhead.
我可以采取什么措施来合并和缩小 dex 文件？ dex文件在哪里？谢谢
我实际上没有得到这个问题的答案。只是给了进一步研究的提示
@ng2b30，你有没有找到解决这个错误的方法？
@Hemang no =[。这让我很烦。我认为这应该是我的资源造成的，我应该更多地关注这一点。
【参考方案1】：
这基本上是说你有太多的代码/资源作为你的编译输出。
有两个与此相关的主题，如果我看到你的build.gradle（特别是依赖项）会更容易回答，但这里是：
通常情况下，您的应用程序会引入大量依赖项，但实际上并未使用其中的每一段代码，因此可以安全地删除未使用的内容。 这里的答案是Proguard。
如果仍然没有帮助，您需要Multidex 将您的应用拆分为多个输出文件。
话虽如此，请不惜一切代价避免使用 Multidex：它会减慢构建过程并为您的应用带来更多复杂性。它适用于那些您没有任何其他选择的极少数情况。
【讨论】：
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