两次密码输入一致性验证，控件焦点设置

ImageView btn_register = (ImageView) findViewById(R.id.btn_register);
		 btn_register.setOnClickListener(new View.OnClickListener() {
	         @Override
	         public void onClick(View v) {
	        	 if(etPassword.getText().equals(etPassword2.getText()))
	        	 {
	        		 Register();
	        	 }
	        	 else
	        	 {
						Toast.makeText(RegisterActivity.this, "密码不一致，请重新输入", Toast.LENGTH_SHORT).show();
						etPassword.setText("");
						etPassword2.setText("");
						etPassword.setFocusable(true);
						etPassword.setFocusableInTouchMode(true);
						<span style="color:#ff0000;">etPassword.requestFocus();<span style="white-space:pre">		</span>//这两句是关键
						etPassword.requestFocusFromTouch();<span style="white-space:pre">	</span>//之前网上好多帖子漏了这两句，所以效果出不来</span>
	        	 }
	         }
	     });