我創建了一系列按鈕.現在我想找到按鈕的高度和寬度,為此我使用了getWidth()和getHeight().但問題是它總是返回0.為什么會發生這種情況？我發送了我的代碼,請檢查是否有任何問題.

int x,y;

LinearLayout layoutVertical = (LinearLayout) findViewById(R.id.liVLayout);

LinearLayout rowLayout = null;

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

//Create Button

for (int i = 0; i<6; i++)

{

rowLayout = new LinearLayout(this);

rowLayout.setWeightSum(7);

layoutVertical.addView(rowLayout, param);

for(int j=0; j<7; j++)

{

m_pBtnDay[i][j] = new Button(this);

rowLayout.addView(m_pBtnDay[i][j], param);

m_pBtnDay[i][j].setOnLongClickListener(this);

m_pBtnDay[i][j].setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL);

m_pBtnDay[i][j].setTextSize(12);

}

}

x = m_pBtnDay[i][j].getWidth();

y = m_pBtnDay[i][j].getHeight();

Log.d("width", Integer.toString(x));

Log.d("Height", Integer.toString(y));

return true;