Question

我有一系列按钮。现在，当单击每个按钮时，我希望按钮文本显示在textBox中。我尝试了但它不起作用。这是我的代码：

public boolean initDay()
    {
        LinearLayout layoutVertical = (LinearLayout) findViewById(R.id.liVLayout);
        LinearLayout rowLayout=null;

        LayoutParams param = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT,1);

        for (i = 0; i<6; i++) 
        {
            rowLayout = new LinearLayout(this);
            rowLayout.setWeightSum(7);
            layoutVertical.addView(rowLayout,param);
            for(j=0;j<7;j++)
            {
                pBtnDay[i][j]=new Button(this);
                rowLayout.addView(pBtnDay[i][j],param);
                pBtnDay[i][j].setClickable(true);
                pBtnDay[i][j].setOnClickListener(this);
            }
        }
        return true;
    }
    public void onClick(View v)
    {
         TextView t = (TextView)findViewById(R.id.textV);   
         t.setText(pBtnDay[i][j].getText());
    }

Answer 1

您应该将t.setText(pBtnDay[i][j].getText());更改为t.setText(v.getText());变量i并且j在onClick方法中不可见，并且它们在那里都等于0。

Answer 2

public boolean initDay()
    {
        LinearLayout layoutVertical = (LinearLayout) findViewById(R.id.liVLayout);
        LinearLayout rowLayout=null;

        LayoutParams param = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT,1);

        for (i = 0; i<6; i++) 
        {
            rowLayout = new LinearLayout(this);
            rowLayout.setWeightSum(7);
            layoutVertical.addView(rowLayout,param);
            for(j=0;j<7;j++)
            {
                pBtnDay[i][j]=new Button(this);
                rowLayout.addView(pBtnDay[i][j],param);
                pBtnDay[i][j].setClickable(true);
                pBtnDay[i][j].setOnClickListener({
                public void onClick(View v){
TextView t = (TextView)findViewById(R.id.textV);   
         t.setText(view.getText());

});
            }
        }
        return true;
    }

Answer 3

public boolean initDay()
    {
        LinearLayout layoutVertical = (LinearLayout) findViewById(R.id.liVLayout);
        LinearLayout rowLayout=null;
        Button pBtnDay;
        LayoutParams param = new 
          TextView t = (TextView)findViewById(R.id.textV);
LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT,1);
    for (i = 0; i<6; i++) 
    {
        rowLayout = new LinearLayout(this);
        rowLayout.setWeightSum(7);
        layoutVertical.addView(rowLayout,param);
        for(j=0;j<7;j++)
        {
            pBtnDay=new Button(this);
            rowLayout.addView(pBtnDay,param);
            pBtnDay.setClickable(true);

        }
    }
    return true;
}

pBtnDay.setOnClickListener(new OnClickListener(){

public void onClick(View v)
{

     t.setText(v.getText());
}
});

如何获取按钮的文本

3 个答案: