Live2d在未初始化好，跳转到其他Activity后返回崩溃

public class MainActivity extends Activity {

    private GLSurfaceView _glSurfaceView;
    private GLRenderer _glRenderer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        JniBridgeJava.SetActivityInstance(this);
        JniBridgeJava.SetContext(this);
        _glSurfaceView = new GLSurfaceView(this);
        _glSurfaceView.setEGLContextClientVersion(2);
        _glRenderer = new GLRenderer();
        _glSurfaceView.setRenderer(_glRenderer);
        _glSurfaceView.setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY);
        setContentView(_glSurfaceView);

        getWindow().getDecorView().setSystemUiVisibility(
                View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_FULLSCREEN
                        | (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT
                        ? View.SYSTEM_UI_FLAG_LOW_PROFILE
                        : View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY)
        );
    }

    @Override
    protected void onStart() {
        super.onStart();
        JniBridgeJava.nativeOnStart();
    }

    @Override
    protected void onResume() {
        super.onResume();
        _glSurfaceView.onResume();
    }

    @Override
    protected void onPause() {
        super.onPause();
        _glSurfaceView.onPause();
        JniBridgeJava.nativeOnPause();
    }

    @Override
    protected void onStop() {
        super.onStop();
        JniBridgeJava.nativeOnStop();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        JniBridgeJava.nativeOnDestroy();
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        float pointX = event.getX();
        float pointY = event.getY();
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                JniBridgeJava.nativeOnTouchesBegan(pointX, pointY);
                break;
            case MotionEvent.ACTION_UP:
                JniBridgeJava.nativeOnTouchesEnded(pointX, pointY);
                break;
            case MotionEvent.ACTION_MOVE:
                JniBridgeJava.nativeOnTouchesMoved(pointX, pointY);
                break;
        }
        return super.onTouchEvent(event);
    }

}

live2d 官方的demo 是按照Android的生命周期来写的。Android生命周期中 onstop方法是在跳转到其他activity 必然会调用。当我们live2d库还未加载完成资源就跳转并释放资源会返回崩溃，为什么在其他activity不崩溃而返回来的时候崩溃，因为C++代码

void LAppDelegate::OnStop()
{
    if (_view)
    {
        delete _view;
        _view = NULL;
    }
    if (_textureManager)
    {
        delete _textureManager;
        _textureManager = NULL;
    }

    // リソースを解放
    LAppLive2DManager::ReleaseInstance();

    CubismFramework::Dispose();
}

模型已经停止渲染了， 你在其他activity未返回的时候就按下了暂停键有没有资源都无所谓，但是你一旦返回原来的activity 又调用 onStart 方法

void LAppDelegate::OnStart()
{
    _textureManager = new LAppTextureManager();
    _view = new LAppView();
    LAppPal::UpdateTime();
}

又重新渲染，但资源又释放了，所以就崩溃了。Android又废一点崩溃日志都没有，我调试了很久才知道是 OnStop 函数出问题。

如何修复呢？

很简单只要把最后两行移下来就好

void LAppDelegate::OnStop()
{
    if (_view)
    {
        delete _view;
        _view = NULL;
    }
    if (_textureManager)
    {
        delete _textureManager;
        _textureManager = NULL;
    }
}

void LAppDelegate::OnDestroy()
{
    // リソースを解放
    LAppLive2DManager::ReleaseInstance();
    CubismFramework::Dispose();
    ReleaseInstance();
}