android - onClick完成后APP崩溃如何解决

Question

我想在按钮的 onClick 监听器中做一些工作，但 onClick() 方法完成后崩溃了

首先，我想在 OnClickListener 中不能做太多工作。所以我在新线程中做了同样的工作，但崩溃仍然存在。

这是为按钮设置的 OnClickListener:

stopButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                CloseDevice();
                mTxtStatus.setText("close device successfully!");
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        if (mBufImage == null) {
                            runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    mTxtReport.setText("capture failed");
                                }
                            });

                            return;
                        }


                        final byte reshapedImg[] = reshape(1);
                        byte centerImage[] =  addCenterPoint(reshapedImg, 256,256);

                        if (centerImage == null) {
                            runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    mTxtStatus.setText("run: locate failed");
                                }
                            });

                            return;
                        } else {
                            runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    mTxtStatus.setText("run:locate success! ");
                                }
                            });

                        }


                        final byte recropedImg [] = recropImg(reshapedImg,256,256);
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                Bitmap bitmap = ToolUtils.renderCroppedGreyScaleBitmap(recropedImg, 175, 175);

                                mImgView.setImageBitmap(bitmap);
                            }
                        });


                        double feature [][] = ju.extractFeature(recropedImg,175,175);
                        printarr(feature);
                    }
                }).run();
}

在这些代码中。双特征[][] = ju.extractFeature(recropedImg,175,175);这个函数是一个本地方法。下一行printarr(特征);将在 logcat 中打印数组。logcat 显示 printarr() 崩溃之前的输出。所以我确信 onClick() 方法已完成，但它崩溃了!

我怀疑它在我的 native 方法中崩溃了，因为只有当我添加 native 方法时才会发生崩溃。但回溯显示它与我的 native 库无关:

05-24 15:35:37.329 5792-5792/com.example.wangzh.normaltest I/Choreographer: Skipped 65 frames!  The application may be doing too much work on its main thread.
05-24 15:35:37.337 5792-5810/com.example.wangzh.normaltest A/libc: Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x40bcf39a3c0aa84c in tid 5810 (RenderThread), pid 5792 (ngzh.normaltest)
05-24 15:35:37.395 5831-5831/? I/crash_dump64: obtaining output fd from tombstoned, type: kDebuggerdTombstone
05-24 15:35:37.396 2752-2752/? I//system/bin/tombstoned: received crash request for pid 5810
05-24 15:35:37.396 5831-5831/? I/crash_dump64: performing dump of process 5792 (target tid = 5810)
05-24 15:35:37.408 5831-5831/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
05-24 15:35:37.409 5831-5831/? A/DEBUG: Build fingerprint: 'Android/hikey960/hikey960:9/PQ1A.190105.004/wangzh05142144:userdebug/test-keys'
    Revision: '0'
    ABI: 'arm64'
    pid: 5792, tid: 5810, name: RenderThread  >>> com.example.wangzh.normaltest <<<
    signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x40bcf39a3c0aa84c
        x0  00000070508ccc40  x1  00000070367ed330  x2  0000007050837bb0  x3  000000704a09e838
        x4  0000000000000000  x5  0000000000000000  x6  0000007036293948  x7  0000000044730000
        x8  40bcf39a3c0aa7ec  x9  29ffcb3e9a9df1e0  x10 00000070d2ad7000  x11 0000000000000000
        x12 0000000000000000  x13 00000000000000ff  x14 00000000000007b0  x15 0000000000000000
        x16 00000070d2c5a650  x17 00000070d295b9d0  x18 0000007036295c00  x19 0000007036293948
        x20 0000007050837bb0  x21 00000070367ed330  x22 000000704a0a6780  x23 0000000000000000
        x24 0000000000000000  x25 000000704a09e838  x26 000000703629f588  x27 0000000000003815
        x28 0000000000000000  x29 00000070362938e0
        sp  0000007036293800  lr  00000070d292bfdc  pc  00000070d292c178
05-24 15:35:37.451 5831-5831/? A/DEBUG: backtrace:
        #00 pc 000000000046f178  /system/lib64/libhwui.so (_ZL23skpaint_to_grpaint_implP9GrContextRK16GrColorSpaceInfoRK7SkPaintRK8SkMatrixPNSt3__110unique_ptrI19GrFragmentProcessorNSA_14default_deleteISC_EEEEP11SkBlendModeP7GrPaint.llvm.2395171566+592)
        #01 pc 00000000002ada14  /system/lib64/libhwui.so (SkGpuDevice::drawOval(SkRect const&, SkPaint const&)+188)
        #02 pc 000000000049c300  /system/lib64/libhwui.so (SkCanvas::onDrawOval(SkRect const&, SkPaint const&)+392)
        #03 pc 000000000049ea38  /system/lib64/libhwui.so (SkCanvas::drawCircle(float, float, float, SkPaint const&)+104)
        #04 pc 000000000045b0d0  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+352)
        #05 pc 000000000045b88c  /system/lib64/libhwui.so (SkLiteDL::draw(SkCanvas*) const+196)
        #06 pc 000000000043be7c  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::drawContent(SkCanvas*) const+292)
        #07 pc 000000000043c244  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::forceDraw(SkCanvas*)+252)
        #08 pc 000000000045b004  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+148)
        #09 pc 000000000045b88c  /system/lib64/libhwui.so (SkLiteDL::draw(SkCanvas*) const+196)
        #10 pc 000000000043be7c  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::drawContent(SkCanvas*) const+292)
        #11 pc 000000000043c244  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::forceDraw(SkCanvas*)+252)
        #12 pc 000000000047e1a4  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::EndReorderBarrierDrawable::onDraw(SkCanvas*)+252)
        #13 pc 000000000045b0d0  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+352)
        #14 pc 000000000045b88c  /system/lib64/libhwui.so (SkLiteDL::draw(SkCanvas*) const+196)
        #15 pc 000000000043be7c  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::drawContent(SkCanvas*) const+292)
        #16 pc 000000000043c244  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::forceDraw(SkCanvas*)+252)
        #17 pc 000000000045b004  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+148)
        #18 pc 000000000045b88c  /system/lib64/libhwui.so (SkLiteDL::draw(SkCanvas*) const+196)
        #19 pc 000000000043be7c  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::drawContent(SkCanvas*) const+292)
        #20 pc 000000000043c244  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::forceDraw(SkCanvas*)+252)
        #21 pc 000000000045b004  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+148)
        #22 pc 000000000045b88c  /system/lib64/libhwui.so (SkLiteDL::draw(SkCanvas*) const+196)
        #23 pc 000000000043be7c  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::drawContent(SkCanvas*) const+292)
        #24 pc 000000000043c244  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::forceDraw(SkCanvas*)+252)
        #25 pc 000000000045b004  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+148)
        #26 pc 000000000045b88c  /system/lib64/libhwui.so (SkLiteDL::draw(SkCanvas*) const+196)
        #27 pc 000000000043be7c  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::drawContent(SkCanvas*) const+292)
        #28 pc 000000000043c244  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::forceDraw(SkCanvas*)+252)
        #29 pc 000000000045b004  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+148)
        #30 pc 000000000045b88c  /system/lib64/libhwui.so (SkLiteDL::draw(SkCanvas*) const+196)
        #31 pc 000000000043be7c  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::drawContent(SkCanvas*) const+292)
        #32 pc 000000000043c244  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::forceDraw(SkCanvas*)+252)
        #33 pc 000000000045b004  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+148)
        #34 pc 000000000045b88c  /system/lib64/libhwui.so (SkLiteDL::draw(SkCanvas*) const+196)
        #35 pc 000000000043be7c  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::drawContent(SkCanvas*) const+292)
        #36 pc 000000000043c244  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::forceDraw(SkCanvas*)+252)
        #37 pc 000000000045b004  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+148)
        #38 pc 000000000045b88c  /system/lib64/libhwui.so (SkLiteDL::draw(SkCanvas*) const+196)
        #39 pc 000000000043be7c  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::drawContent(SkCanvas*) const+292)
        #40 pc 000000000043c244  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::RenderNodeDrawable::forceDraw(SkCanvas*)+252)
        #41 pc 000000000045b004  /system/lib64/libhwui.so (SkDrawable::draw(SkCanvas*, SkMatrix const*)+148)
        #42 pc 00000000000fd9a0  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::SkiaPipeline::renderFrameImpl(android::uirenderer::LayerUpdateQueue const&, SkRect const&, std::__1::vector<android::sp<android::uirenderer::RenderNode>, std::__1::allocator<android::sp<android::uirenderer::RenderNode>>> const&, bool, bool, android::uirenderer::Rect const&, SkCanvas*)+424)
        #43 pc 00000000004803c8  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::SkiaPipeline::renderFrame(android::uirenderer::LayerUpdateQueue const&, SkRect const&, std::__1::vector<android::sp<android::uirenderer::RenderNode>, std::__1::allocator<android::sp<android::uirenderer::RenderNode>>> const&, bool, bool, android::uirenderer::Rect const&, sk_sp<SkSurface>)+136)
        #44 pc 000000000047f5d4  /system/lib64/libhwui.so (android::uirenderer::skiapipeline::SkiaOpenGLPipeline::draw(android::uirenderer::renderthread::Frame const&, SkRect const&, SkRect const&, android::uirenderer::FrameBuilder::LightGeometry const&, android::uirenderer::LayerUpdateQueue*, android::uirenderer::Rect const&, bool, bool, android::uirenderer::BakedOpRenderer::LightInfo const&, std::__1::vector<android::sp<android::uirenderer::RenderNode>, std::__1::allocator<android::sp<android::uirenderer::Re
        #45 pc 0000000000108028  /system/lib64/libhwui.so (android::uirenderer::renderthread::CanvasContext::draw()+192)
        #46 pc 00000000004844dc  /system/lib64/libhwui.so (_ZNSt3__110__function6__funcIZN7android10uirenderer12renderthread13DrawFrameTask11postAndWaitEvE3$_0NS_9allocatorIS6_EEFvvEEclEv$c303f2d2360db58ed70a2d0ac7ed911b+644)
        #47 pc 000000000043adc8  /system/lib64/libhwui.so (android::uirenderer::WorkQueue::process()+168)
        #48 pc 000000000011575c  /system/lib64/libhwui.so (android::uirenderer::renderthread::RenderThread::threadLoop()+244)
        #49 pc 000000000000fb80  /system/lib64/libutils.so (android::Thread::_threadLoop(void*)+280)
        #50 pc 0000000000083194  /system/lib64/libc.so (__pthread_start(void*)+36)
        #51 pc 00000000000233bc  /system/lib64/libc.so (__start_thread+68)
05-24 15:35:37.834 2752-2752/? E//system/bin/tombstoned: Tombstone written to: /data/tombstones/tombstone_15

谁能给点建议吗？任何事情都值得赞赏!提前谢谢您。

Answer 1

您需要通过 start() 方法启动线程，而不是 run()，因为 run() 只是调用同一线程中的可运行对象，因此它会阻塞主线程:

stopButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                CloseDevice();
                mTxtStatus.setText("close device successfully!");
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        if (mBufImage == null) {
                            runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    mTxtReport.setText("capture failed");
                                }
                            });

                            return;
                        }


                        final byte reshapedImg[] = reshape(1);
                        byte centerImage[] =  addCenterPoint(reshapedImg, 256,256);

                        if (centerImage == null) {
                            runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    mTxtStatus.setText("run: locate failed");
                                }
                            });

                            return;
                        } else {
                            runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    mTxtStatus.setText("run:locate success! ");
                                }
                            });

                        }


                        final byte recropedImg [] = recropImg(reshapedImg,256,256);
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                Bitmap bitmap = ToolUtils.renderCroppedGreyScaleBitmap(recropedImg, 175, 175);

                                mImgView.setImageBitmap(bitmap);
                            }
                        });


                        double feature [][] = ju.extractFeature(recropedImg,175,175);
                        printarr(feature);
                    }
                }).start();
}