4.18android键盘弹出方式

http://blog.sina.com.cn/s/blog_6a156a1b0101547k.html

一次开发中，键盘弹出，覆盖在view上面，界面标题移出屏幕，是应为没有设置"adjustResize"

自动调整view高度导致的。

两种方法限制编辑框长度：

//编辑事件

addTextChangedListener(new TextWatcher() {

@Override

publicvoid onTextChanged(CharSequence cs, int arg1,int arg2, int arg3) {

if (textWatcher!=null) {

textWatcher.onTextChanged(cs, arg1, arg2, arg3);

}

}

@Override

publicvoid beforeTextChanged(CharSequence arg0, int arg1, int arg2,

int arg3) {

if (textWatcher!=null) {

textWatcher.beforeTextChanged(arg0, arg1, arg2, arg3);

}

}

@Override

publicvoid afterTextChanged(Editable s) {

if (textWatcher!=null) {

textWatcher.afterTextChanged(s);

}

int len = s.length();

if (len>maxLength) {

int selectionStart=AppEditText.this.getSelectionStart();

int selectionEnd=AppEditText.this.getSelectionEnd();

s.delete(selectionStart-1, selectionEnd);

return;

}

}

});

//2

this.setFilters(new InputFilter[]{new InputFilter.LengthFilter(maxLength)});