java - 安卓 IllegalArgumentException lockCanvas()

Question

我一直在为这个异常而苦苦挣扎，我环顾四周，但没有任何帮助。

这是代码

package com.example.surfacetest;

import android.app.Activity;
import android.content.Context;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.Surface.OutOfResourcesException;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

public class BoardSurfaceActivity extends Activity {
    /** Called when the activity is first created. */

    private static final String TAG = BoardSurfaceActivity.class.getSimpleName();
    private BoardSurface bS;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        bS = new BoardSurface(this);
        setContentView(bS);
        Log.d(TAG, "View added");
    }

    @Override
    protected void onDestroy() {
        Log.d(TAG, "Destroying...");
        super.onDestroy();
    }

    @Override
    protected void onStop() {
        Log.d(TAG, "Stopping...");
        super.onStop();
    }

    @Override
    protected void onRestart() {
        // TODO Auto-generated method stub
        super.onRestart();
    }

    @Override
    protected void onPause() {
        Log.d(TAG, "Pausing...");
        super.onPause();
    }

    @Override
    protected void onResume() {
        Log.d(TAG, "Resuming...");
        super.onResume();

    }

    public class BoardSurface extends SurfaceView implements SurfaceHolder.Callback, Runnable {
        final String TAG = BoardSurface.class.getSimpleName();
        private Stuff stuff;
        Thread t = null;
        SurfaceHolder holder;
        boolean isItOk = false;

        public BoardSurface(Context context) {
            super(context);
            holder = getHolder();
            getHolder().addCallback(this);
            stuff = new Stuff(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher), 50, 50);
            t = new Thread(this);
            setFocusable(true);
        }

        @Override
        public void surfaceCreated(SurfaceHolder holder) {
            Log.d(TAG, "Surface created");
            resume();
        }

        @Override
        public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

        }

        @Override
        public void surfaceDestroyed(SurfaceHolder holder) {
            Log.d(TAG, "Surface Destroyed");
            pause();
        }

        @Override
        public boolean onTouchEvent(MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN) {
                // delegating event handling to the droid
                stuff.handleActionDown((int) event.getX(), (int) event.getY());

                // check if in the lower part of the screen we exit
                if (event.getY() > getHeight() - 50) {
                    ((Activity) getContext()).finish();
                } else {
                    Log.d(TAG, "Coords: x=" + event.getX() + ",y=" + event.getY());
                }
            }
            if (event.getAction() == MotionEvent.ACTION_MOVE) {
                // the gestures
                if (stuff.isTouched()) {
                    // the droid was picked up and is being dragged
                    stuff.setX((int) event.getX());
                    stuff.setY((int) event.getY());
                }
            }
            if (event.getAction() == MotionEvent.ACTION_UP) {
                // touch was released
                if (stuff.isTouched()) {
                    stuff.setTouched(false);
                }
            }
            return true;
        }

        public void draw(Canvas canvas) {
            canvas.drawColor(Color.BLUE);
            stuff.draw(canvas);
        }

        @Override
        public void run() {
            while (isItOk) {
                holder = getHolder();
                if (holder.getSurface().isValid()) {

                    Canvas c = null;
                    try {
                        // make sure holder is updated
                        c = holder.lockCanvas(null);
                        if (c != null) {
                            synchronized (holder) {
                                draw(c);
                            }
                        }
                    } catch (IllegalArgumentException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } finally {
                        if (c != null) {
                            holder.unlockCanvasAndPost(c);
                        }
                    }
                }
            }
        }

        public void pause() {
            isItOk = false;
            while (true) {
                try {
                    t.join();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                break;
            }
            t = null;
        }

        public void resume() {
            if (t.getState() == Thread.State.TERMINATED) {
                t = new Thread(this);
                isItOk = true;
                t.start();
            } else {
                isItOk = true;
                t.start();
            }

        }
    }
}

super 奇怪的是我有这个痕迹:

10-22 08:54:41.153: D/BoardSurface(17298): Surface created
10-22 08:54:41.394: E/memalloc(17298): /dev/pmem: Failed to map buffer size:24641536 offset:23699456 fd:56 Error: Invalid argument
10-22 08:54:41.394: E/gralloc(17298): Could not mmap handle 0x89e2b8, fd=56 (Invalid argument)
10-22 08:54:41.394: E/gralloc(17298): gralloc_register_buffer: gralloc_map failed
10-22 08:54:41.394: W/GraphicBufferMapper(17298): registerBuffer(0x89e2b8) failed -22 (Invalid argument)
10-22 08:54:41.394: E/GraphicBuffer(17298): unflatten: registerBuffer failed: Invalid argument (-22)
10-22 08:54:41.394: E/memalloc(17298): /dev/pmem: Failed to map buffer size:24641536 offset:23699456 fd:56 Error: Invalid argument
10-22 08:54:41.394: E/gralloc(17298): Could not mmap handle 0x89e2b8, fd=56 (Invalid argument)
10-22 08:54:41.394: E/libgenlock(17298): perform_lock_unlock_operation: GENLOCK_IOC_DREADLOCK failed (lockType0x1,err=Bad file number fd=56)
10-22 08:54:41.394: E/gralloc(17298): gralloc_lock: genlock_lock_buffer (lockType=0x2) failed
10-22 08:54:41.394: W/GraphicBufferMapper(17298): lock(...) failed -22 (Invalid argument)
10-22 08:54:41.394: W/Surface(17298): failed locking buffer (handle = 0x89e2b8)
10-22 08:54:41.424: E/SurfaceHolder(17298): Exception locking surface
10-22 08:54:41.424: E/SurfaceHolder(17298): java.lang.IllegalArgumentException
10-22 08:54:41.424: E/SurfaceHolder(17298):     at android.view.Surface.nativeLockCanvas(Native Method)
10-22 08:54:41.424: E/SurfaceHolder(17298):     at android.view.Surface.lockCanvas(Surface.java:236)
10-22 08:54:41.424: E/SurfaceHolder(17298):     at android.view.SurfaceView$4.internalLockCanvas(SurfaceView.java:807)
10-22 08:54:41.424: E/SurfaceHolder(17298):     at android.view.SurfaceView$4.lockCanvas(SurfaceView.java:787)
10-22 08:54:41.424: E/SurfaceHolder(17298):     at com.example.surfacetest.BoardSurfaceActivity$BoardSurface.run(BoardSurfaceActivity.java:137)
10-22 08:54:41.424: E/SurfaceHolder(17298):     at java.lang.Thread.run(Thread.java:841)

在我的运行循环中。

但这是棘手的部分!当我按返回(不是 HOME)时，然后再次从菜单启动应用程序。它只是简单地工作。

所以我真的不知道我错过了什么。

其他信息:我在 HTC Sensation XE、CM 10.2 (Android 4.3.1) 上运行

编辑:

设备不是这里的问题。尝试使用另一台 HTC 的库存 ROM。

编辑 2:

即使我检查:

if (holder.getSurface().isValid())

具体是说如果 lockcanvas() 为真就会成功，我得到这个异常

10-22 10:11:27.688: E/SurfaceHolder(22195): Exception locking surface
10-22 10:11:27.688: E/SurfaceHolder(22195): java.lang.IllegalArgumentException
10-22 10:11:27.688: E/SurfaceHolder(22195):     at android.view.Surface.nativeLockCanvas(Native Method)
10-22 10:11:27.688: E/SurfaceHolder(22195):     at android.view.Surface.lockCanvas(Surface.java:236)
10-22 10:11:27.688: E/SurfaceHolder(22195):     at android.view.SurfaceView$4.internalLockCanvas(SurfaceView.java:807)
10-22 10:11:27.688: E/SurfaceHolder(22195):     at android.view.SurfaceView$4.lockCanvas(SurfaceView.java:787)
10-22 10:11:27.688: E/SurfaceHolder(22195):     at com.example.surfacetest.BoardSurfaceActivity$BoardSurface.run(BoardSurfaceActivity.java:144)
10-22 10:11:27.688: E/SurfaceHolder(22195):     at java.lang.Thread.run(Thread.java:841)

编辑 3:

适用于 Galaxy S4 Stock ROM 和模拟器 Intelx86 4.2.2

Answer 1

@CinetiK:发布剩余的堆栈跟踪信息。

HTC 设备在旋转和表面测试方面臭名昭著。你试过这个吗:

1. 重启手机。

2. 进入安全模式(即重启手机，当您看到 HTcflags时，长按音量调低按钮)。手机将再次重启并进入安全模式。

3. 手机进入安全模式后，转到设置 |显示与手势 |重力传感器校准。然后，校准您的手机，同时确保您的手机放在平坦的表面上。校准成功完成后，以正常模式重启手机。

如果上述步骤仍未修复错误，并且由于您使用的是 CM 10.2，我建议您先在库存 ROM 上测试您的 Android 应用。虽然我并不反对自定义 Android ROM(我自己使用过它们)，但根据经验，我在自定义 ROM 上遇到的无法解释的错误比普通 ROM 多。先试试原版 ROM，看看你是否仍然遇到同样的错误。