andriod 动态创建控件
Button btNext=(Button)findViewById(R.id.next);
btNext.setOnClickListener(new Button.OnClickListener(){
public void onClick(View view){
//创建一个布局管理器控件
LinearLayout linearLayout=new LinearLayout(MainActivity.this);
setContentView(linearLayout);
//设置orientation为horizontal,1表示为vertical
linearLayout.setOrientation(0);
TextView tvSecond=new TextView(MainActivity.this);
tvSecond.setText("这是Android奉献给你的第二个页面");
Button btNext2=new Button(MainActivity.this);
btNext2.setText("下一步");
btNext2.setId(2);
LinearLayout.LayoutParams lp1 = new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
linearLayout.addView(tvSecond,lp1);
linearLayout.addView(btNext2,lp1);
btNext2.setOnClickListener(new View.OnClickListener(){
public void onClick(View view){
//这次只放置一个TextView不需要布局管理器
TextView tv3=new TextView(MainActivity.this);
tv3.setText("恭喜你已来到最后一个页面！");
//直接让页面显示一个TextView
setContentView(tv3);
}
});
}
});
类似
Button btNext=(Button)findViewById(R.id.next);
btNext.setOnClickListener(new ButtonCreateClickListener());
}
private class ButtonCreateClickListener implements View.OnClickListener {
public void onClick(View view) {
//创建一个布局管理器控件
LinearLayout linearLayout = new LinearLayout(MainActivity.this);
setContentView(linearLayout);
//设置orientation为horizontal,1表示为vertical
linearLayout.setOrientation(0);
TextView tvSecond = new TextView(MainActivity.this);
tvSecond.setText("这是Android奉献给你的第二个页面");
Button btNext2 = new Button(MainActivity.this);
btNext2.setText("下一步");
btNext2.setId(2);
LinearLayout.LayoutParams lp1 = new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
linearLayout.addView(tvSecond, lp1);
linearLayout.addView(btNext2, lp1);
btNext2.setOnClickListener(new btNext2ClickListener());
}
}
private class btNext2ClickListener implements View.OnClickListener {
public void onClick(View v) {
//这次只放置一个TextView不需要布局管理器
TextView tv3 = new TextView(MainActivity.this);
tv3.setText("恭喜你已来到最后一个页面！");
//直接让页面显示一个TextView
setContentView(tv3);
}
}
创建按钮
Button btNext=(Button)findViewById(R.id.next);
btNext.setOnClickListener(new ButtonCreateClickListener());
}
private class ButtonCreateClickListener implements View.OnClickListener {
public void onClick(View view) {
//创建一个button按钮
Button btn1 = new Button( MainActivity.this);
btn1.setText("this is a button");
btn1.setId(1);
TableLayout pTableLayout=(TableLayout)findViewById(R.id.table2);
pTableLayout.addView(btn1);
}
}
可以是
private class ButtonCreateClickListener implements View.OnClickListener {
public void onClick(View view) {
//创建一个button按钮
Button btn1 = new Button( MainActivity.this);
btn1.setText("this is a button");
btn1.setId(1);
TableRow pTableRow=(TableRow)findViewById(R.id.TableRow2);
pTableRow.addView(btn1);
}
}
