根据页面edittext的内容控制按钮可点击状态

当页面所有edittext不为空时按钮才可点击。

activity实现TextWatcher接口，oncreate方法添加输入框监听

ed1.addTextChangedListener(this);ed2.addTextChangedListener(this);ed3.addTextChangedListener(this);

@Overridepublic void beforeTextChanged(CharSequence s, int start, int count, int after){}@Overridepublic void onTextChanged(CharSequence s, int start, int before, int count){}@Overridepublic void afterTextChanged(Editable s){if (StringUtils.isNotEmpty(ed1.getText().toString())&& StringUtils.isNotEmpty(ed2.getText().toString())&& StringUtils.isNotEmpty(ed3.getText().toString())){okBtn.setEnabled(true);}else{okBtn.setEnabled(false);}}

为区分按钮状态设置enable=false背景为灰色android:background="@drawable/button_activity"

button_activity.xml文件

<selector xmlns:android=""><item android:state_pressed="true"><shape><solid android:color="@color/programstatus_review" /><stroke android:width="2dp" android:color="@color/lottery_button" /><corners android:radius="15dp" /></shape></item><item android:state_enabled="false"><shape><stroke android:width="2dp" /><solid android:color="@color/c_gray_light" /><corners android:radius="15dp" /><padding android:bottom="5dp" android:left="20dp" android:right="20dp" android:top="5dp" /></shape></item><item><shape><stroke android:width="2dp" /><solid android:color="@color/c_gray_1" /><corners android:radius="15dp" /><padding android:bottom="5dp" android:left="20dp" android:right="20dp" android:top="5dp" /></shape></item></selector>

，却坐在不足一平米的椅子上。