我一直致力于制作数独网格，每当我触摸一个单元格时，其单元格的值会发生变化。所以我已经在子视图的LinearLayout中实现了这个数独网格，并尝试使用OnTouch方法，但它无法正常工作。我尝试使用log方法来检查onTouch是否实际被调用，但它似乎完全忽略了这个方法。我一直在寻找其他问题的解决方案，但似乎这些解决方案都没有帮助。我觉得有点傻逼，任何帮助都会非常感激。
这是我的代码：
SudokuActivity.java
package snacker.nonogramsolver;
import ...; /*many things are imported here*/
public class SudokuActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sudoku);
Button btn = (Button)findViewById(R.id.btn_clear);
Sudoku sdk = new Sudoku(this);
sdk.setOnTouchListener(sdk);
}
}
;
Sudoku.java
package snacker.nonogramsolver;
import ...;
public class Sudoku extends View implements View.OnTouchListener {
int mWidth = 9;
int mHeight = 9;
int mCellWidth, mCellHeight;
int mCellMargin;
int mEdgeThick;
int mStatus;
int mTextSize;
int mXNow = -1, mYNow = -1;
int[][] mBoard = new int[9][9];
Point mBoardPt;
Paint mTextPaint, mTileEdgePaint;
final static int VALID = 0;
public Sudoku(Context context){
super(context);
initializeBoard();
}
public Sudoku(Context context, AttributeSet attrs){
super(context, attrs);
initializeBoard();
}
@Override
protected void onDraw(Canvas canvas){
/* There are some codes here */
Log.d("LogTest","OnDraw Complete");
}
public void initializeBoard(){
for (int x=0; x< mWidth; x++){
for (int y=0; y< mHeight; y++){
mBoard[x][y] = 0;
}
}
invalidate();
}
public boolean onTouch(View v, MotionEvent event){
Log.d("LogTest","Touched?"); /* LOG NOT ACTIVE HERE */
if(event.getAction() == MotionEvent.ACTION_DOWN){
mXNow = getBoardX(event.getX());
Log.d("LogTest","" + mXNow); /* LOG NOT ACTIVE HERE */
mYNow = getBoardY(event.getY());
Log.d("LogTest","" + mYNow); /* LOG NOT ACTIVE HERE */
mBoard[mXNow][mYNow] = mBoard[mXNow][mYNow] + 1;
invalidate();
return true;
}
else return false;
}
int getBoardX(float scrx){
int x = (int)((scrx) / mCellWidth);
if (x < 0) x = 0;
if (x > 8) x= 8;
return x;
}
int getBoardY(float scry){
int y = (int)((scry) / mCellHeight);
if (y < 0) y = 0;
if (y > 8) y = 8;
return y;
}
}
编辑：添加活动XML文件。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:id="@+id/activity_sudoku"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="snacker.nonogramsolver.SudokuActivity">
<snacker.nonogramsolver.Sudoku
android:id="@+id/SudokuGrid"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="@+id/btn_clear"
android:layout_width="150dp"
android:layout_height="30dp"
android:layout_weight="0.06"
android:text="Clear" />
</LinearLayout>
答案 0 :(得分：0)
您不能通过创建对象直接添加touchListener 数独课。您应该以xml或以编程方式添加视图。
您的活动
public class MyActivity extends Activity{ @Override protected void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); //initializing custom views MyCustomView1 myCustomView1 = new MyCustomView1(parameterList); MyCustomView2 myCustomView2 = new MyCustomView2(parameterList); //adding both custom views to the main activity mainView.addView(myCustomView1); mainView.addView(myCustomView1); //adding custom listener to the custom view 1 myCustomView1.setCustomEventListener(new OnCustomEventListener() { @Override public void onEvent() { //firing an event of custom view 1 Toast.makeText(MainActivity.this, "Touched custom view 1", Toast.LENGTH_SHORT).show(); } }); //adding custom listener to the custom view 2 myCustomView2.setCustomEventListener(new OnCustomEventListener() { @Override public void onEvent() { //firing an event of custom view 2 Toast.makeText(MainActivity.this, "Touched custom view 2", Toast.LENGTH_SHORT).show(); } }); } }您的CustomView 1
public class MyCustomView1 extends LinearLayout{ OnCustomEventListener myCustomEventListener; public MyCustomView1(ParameterList){ super(ContextFromParameterList); //Just adding something to the custom view 1 in order to distinguish it on the screen TextView tv = new TextView(ContextFromParameterList); tv.setText("Hello world from custom view 1"); addView(tv); this.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { //delegating one event to another (delegating touch event to custom event) if (MyCustomView1.this.myCustomEventListener != null) MyCustomView1.this.myCustomEventListener.onEvent(); return false; } }); }public void setCustomEventListener（OnCustomEventListener eventListener）{ //从活动中设置自定义侦听器 myCustomEventListener = eventListener; }}
您的CustomView2
public class MyCustomView2 extends LinearLayout { OnCustomEventListener myCustomEventListener; public MyCustomView2(ParameterList) { super(ContextFromParameterList); //Just adding something to the custom view 1 in order to distinguish it on the screen TextView tv = new TextView(ContextFromParameterList); tv.setText("Hello world from custom view 2"); addView(tv); this.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { //delegating one event to another (delegating touch event to custom event) if (MyCustomView2.this.myCustomEventListener != null) MyCustomView2.this.myCustomEventListener.onEvent(); return false; } }); } public void setCustomEventListener(OnCustomEventListener eventListener) { //setting custom listener from activity myCustomEventListener = eventListener; } } Your listener interface: public interface OnCustomEventListener{ //interface defines one method. Can be more and methods may have parameters public void onEvent(); }