无法在 Click 监听器上触发
我试过了
setClickable(true);
但仍然无法工作
minimum sdk is 15
代码没有 xml 文件，我需要以编程方式修复它
完整代码:
public class MainActivity extends AppCompatActivity {
private static char CHAR = 'a';
private Context context;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
context = this;
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
int rowNo = ROWS;
int colNo = (screenWidth().widthPixels * ROWS /screenWidth().heightPixels) ;
for (int i = 0; i < 5; i++) {
LinearLayout row = new LinearLayout(this);
row.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, 1.0f));
for (int j = 0; j < 5; j++) {
String txt = String.valueOf(CHAR);
Cell cell = new Cell(this, txt, 50, 50);
cell.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
System.out.println("value is " + txt);
}
});
row.addView(cell);
CHAR += 1;
}
layout.addView(row);
}
setContentView(layout);
}
private class Cell extends LinearLayout{
public Cell(Context context, final String value, int width, int height) {
super(context);
LinearLayout.LayoutParams cellParams = new LinearLayout.LayoutParams(width, height);
setLayoutParams(cellParams);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
setBackground(getGradientDrawable());
}else{
setBackgroundDrawable(getGradientDrawable());
}
}
private GradientDrawable getGradientDrawable() {
GradientDrawable shape = new GradientDrawable();
shape.setShape(GradientDrawable.RECTANGLE);
shape.setColor(Color.TRANSPARENT);
shape.setStroke(2, Color.BLACK);
return shape;
}
}
}
那么，为什么以及如何解决它。 单击时将打印关联的文本
最佳答案
在循环中尝试 onClickListener
Cell cell = new Cell(this, txt, 50, 50);
cell.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
System.out.println("value is " + value);
}
});
关于java - 点击时无法触发，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49478677/