1闻丑、map格式字符串如何解析漩怎？
借助json,先將字符串轉(zhuǎn)化為json格式，再取值
JSONObject object = new JSONObject(posMap);
clientIden = object.getString("iden");
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1嗦嗡、android中新建的項目如何去掉標題欄
修改AndroidManifest.xml中的主題：
android:theme="@style/Theme.AppCompat.Light.NoActionBar">
2勋锤、有的時候需要隱藏掉EditText的邊框和下劃線
android:background="@null"
3、R包不存在
build---> cleanProject--->buildProject---->到類中重新導入包就可以了
4侥祭、Fragment中要用到土司
Toast.makeText(getActivity(), "ddd", Toast.LENGTH_SHORT).show();
5叁执、android開發(fā)中引入依賴包
file--->project Structure---->app----->dependencies------->右上角加號---->library dependency---->搜索添加
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1、獲取系統(tǒng)當前日期
final Calendar ca = Calendar.getInstance();
mSt_Year = ca.get(Calendar.YEAR);
mSt_Month = ca.get(Calendar.MONTH);
mSt_Day = ca.get(Calendar.DAY_OF_MONTH);
2矮冬、日期對話框
DatePickerDialog dpd = new DatePickerDialog(FilterActivity.this, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
String DateStr = year+"年"+(month+1)+"月"+dayOfMonth+"日";
mTv_date.setText(DateStr);
}
},mSt_Year,mSt_Month,mSt_Day);
dpd.show();
