Edittext 监听输入完成

最近项目中有个需求，更改标题判断输入结束调用API更改标题。开始直接设置的TextWatcher，然后在afterTextChanged事件里调用API更改标题，然后发现每输入一个字都会调用一次API并提示操作成功，体验十分不好。后面尝试了多种方法后用handler.postDelayed解决问题新建一个 Runnable

 private Runnable delayRunnable = new Runnable() {
@Override
public void run() {
updateName(title);

}
};

然后在Editext的TextWatcher中的onTextChanged方法里判断Runnable若不为空就移除，在afterTextChanged中延迟启动Runnable

private TextWatcher watcher = new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if(delayRun!=null){
handler.removeCallbacks(delayRun);
}
}

@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {

}

@Override
public void afterTextChanged(Editable s) {
handler.postDelayed(delayRun, 2000);
}
};

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