如果该按钮在Android中不可见,则Button.PerformClick()不会触发Click事件

Question

btnAppShare即使按钮不可见,我也希望单击我的按钮,我在按钮1单击可见的监听器后编写了此代码.基本上,我希望在完全执行setOnClickListenerbutton1事件后,我的button2会自动被点击并执行其`setOnClickListener.

 btnAppShare = (Button) findViewById(R.id.btnAppShare);
    btnAppShare.setVisibility(View.INVISIBLE);
    btnAppShare.performClick();
    btnAppShare.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View arg0) {

            if (TextUtils.isEmpty(regId)) {
                Toast.makeText(getApplicationContext(), "RegId is empty!",
                        Toast.LENGTH_LONG).show();
            } else {
                Intent i = new Intent(getApplicationContext(),
                        MainActivity.class);
                i.putExtra("regId", regId);

                startActivity(i);
                finish();

            }
        }
    });

Answer 1

用途View#callOnClick():

Button b = (Button)findViewById(R.id.button);
//set here listener
b.callOnClick();

不像performClick()它直接调用onClickListener方法,没有视图相关的东西.在调用点击操作之前,按钮必须有监听器!