系统没有在我的应用程序中调用 onTouchEvent。我已经尝试在活动、视图和渲染器中使用 onTouchEvent 实现它。他们都没有被叫到。所以我在活动和视图上尝试了 dispatchTouchEvent，仍然没有被调用。它基于我编译的 San Angeles NDK 示例，它可以正确检测触摸。
下面是完整的 java 源代码，其他都是原生 c++。
package com.example.SanAngeles;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
import android.app.Activity;
import android.content.Context;
import android.opengl.GLSurfaceView;
import android.os.Bundle;
import android.view.MotionEvent;
public class DemoActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mGLView = new DemoGLSurfaceView(this);
setContentView(mGLView);
}
@Override
protected void onPause() {
super.onPause();
mGLView.onPause();
}
@Override
protected void onResume() {
super.onResume();
mGLView.onResume();
}
private DemoGLSurfaceView mGLView;
static {
System.loadLibrary("Android");
}
}
class DemoGLSurfaceView extends GLSurfaceView {
public DemoGLSurfaceView(Context context) {
super(context);
mRenderer = new DemoRenderer();
mRenderer.context = context;
setRenderer(mRenderer);
}
@Override
public boolean onTouchEvent(final MotionEvent event) {
System.out.println("onTouchEvent");
System.out.println("Motion Event" + event.getAction());
if (event.getAction() == MotionEvent.ACTION_DOWN) {
System.out.println("ACTION DOWN");
final int pointerCount = event.getPointerCount();
System.out.println("down pcount:" + pointerCount);
for(int i = 0; i < pointerCount; i++)
{
System.out.println("Touch x:" + event.getX(i) + "y:" + event.getY(i));
int id = event.getPointerId(i);
nativeTouchDown(id, (int)event.getX(i), (int)event.getY(i));
}
}
if (event.getAction() == MotionEvent.ACTION_UP || event.getAction() == MotionEvent.ACTION_CANCEL) {
final int pointerCount = event.getPointerCount();
System.out.println("up pcount:" + pointerCount);
for(int i = 0; i < pointerCount; i++)
{
int id = event.getPointerId(i);
nativeTouchUp(id);
}
}
if (event.getAction() == MotionEvent.ACTION_MOVE) {
final int pointerCount = event.getPointerCount();
System.out.println("move pcount:" + pointerCount);
for(int i = 0; i < pointerCount; i++)
{
int id = event.getPointerId(i);
nativeTouchMove(id, (int)event.getX(i), (int)event.getY(i));
}
}
return true;
}
DemoRenderer mRenderer;
private static native void nativePause();
}
class DemoRenderer implements GLSurfaceView.Renderer {
Context context;
Object am;
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
am = (Object)context.getAssets();
System.out.println("HDROP:\n AssetManager:" + am);
nativeInit(am, 500,500);
}
public void onSurfaceChanged(GL10 gl, int w, int h) {
//gl.glViewport(0, 0, w, h);
System.out.println("Hdrop surface changed");
nativeResize(w, h);
}
public void onDrawFrame(GL10 gl) {
nativeRender();
}
private static native void nativeInit(Object assetManager, int w, int h);
private static native void nativeTouchDown(int id, int x, int y);
private static native void nativeTouchUp(int id);
private static native void nativeTouchMove(int id, int x, int y);
private static native void nativeResize(int w, int h);
private static native void nativeRender();
private static native void nativeDone();
}