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Android IllegalArgumentException lockCanvas（）

[英]Android IllegalArgumentException lockCanvas()

 原文  2013-10-21 15:05:48  2   1    java/ android/ multithreading/ android-canvas/ surfaceview

問題描述

我一直在努力解決這個異常，我環顧四周，但沒有什么可以幫助我的。

這是代碼 

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();
            }

        }
    }
}

超級奇怪的是我有這樣的痕跡： 

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)

在我的運行循環中。

但這是棘手的部分！ 當我按下（不是HOME）時，再次從菜單中啟動應用程序。 它只是簡單的工作。

所以我真的不知道自己錯過了什么。

附加信息：我正在使用HTC Sensation XE，CM 10.2（Android 4.3.1）

編輯：

該設備不是問題所在。 在庫存ROM上嘗試另一個HTC。

編輯2：

即使我檢查： 

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

具體說明lockcanvas（）如果成功則會成功，我得到這個例外 

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)

編輯3：

適用於Galaxy S4 Stock ROM和仿真器Intelx86 4.2.2

1 個解決方案

解決方案1
 1  2013-10-21 16:12:01

@CinetiK：發布堆棧跟蹤的其余部分。

HTC設備在旋轉和表面測試方面是臭名昭着的。 你試過這個：

  1. 重啟手機。

  2. 轉到安全模式（即重新啟動手機，當您看到HTC徽標時，長按音量調低按鈕）。 手機將重新啟動並進入安全模式。

  3. 手機處於安全模式后，請轉到設置| 展示和手勢| G傳感器校准。 然后，校准手機，同時確保手機放在平坦的表面上。 校准成功完成后，以正常模式重啟手機。

如果上述步驟仍然無法解決錯誤，並且由於您使用的是CM 10.2 ，我建議您首先在庫存ROM上測試您的Android應用程序。 雖然我沒有反對自定義Android ROM（我自己使用它們），但根據經驗，我在自定義ROM上遇到了比庫存ROM更多無法解釋的錯誤。 首先嘗試使用庫存ROM，看看是否仍然會出現相同的錯誤。

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