Android实现省市二级联动
省市资源文件:(放入res/values下)
链接：https://pan.baidu.com/s/1dMjY0m 密码：rf4w
Activity:
public class MainActivity extends Activity{
protected TextView tv1;
private PopupWindow popupWindow;
private LinearLayout rootLl;
private String[] provinces;
private String TAG = this.getClass().getSimpleName();
private RadioGroup radioGroup;
private ArrayAdapter cityadapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
provinces = getResources().getStringArray(R.array.province);
initView();
}
private void initView() {
tv1 = (TextView) findViewById(R.id.tv1);
rootLl = (LinearLayout) findViewById(R.id.root_ll);
tv1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
showPopwindow();
}
});
}
//展示popWindow的方法
private void showPopwindow() {
if (null == popupWindow) {
popupWindow = new PopupWindow(this);
popupWindow.setWidth(rootLl.getWidth());
popupWindow.setHeight((rootLl.getHeight() / 3) * 2);
View popView = View.inflate(this, R.layout.popupwindow_layout, null);
radioGroup = popView.findViewById(R.id.rg);
final ListView listView = popView.findViewById(R.id.lv);
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
String pro = provinces[checkedId];
Log.i(TAG, "onCheckedChanged: ***" + pro);
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.def,
R.layout.spinner_checked_text);
if (pro.equals("北京")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.北京,
R.layout.spinner_checked_text);
} else if (pro.equals("天津")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.天津,
R.layout.spinner_checked_text);
} else if (pro.equals("河北")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.河北,
R.layout.spinner_checked_text);
} else if (pro.equals("山西")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.山西,
R.layout.spinner_checked_text);
} else if (pro.equals("内蒙古")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.内蒙古,
R.layout.spinner_checked_text);
} else if (pro.equals("辽宁")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.辽宁,
R.layout.spinner_checked_text);
} else if (pro.equals("吉林")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.吉林,
R.layout.spinner_checked_text);
} else if (pro.equals("黑龙江")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.黑龙江,
R.layout.spinner_checked_text);
} else if (pro.equals("上海")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.上海,
R.layout.spinner_checked_text);
} else if (pro.equals("江苏")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.江苏,
R.layout.spinner_checked_text);
} else if (pro.equals("浙江")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.浙江,
R.layout.spinner_checked_text);
} else if (pro.equals("安徽")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.安徽,
R.layout.spinner_checked_text);
} else if (pro.equals("福建")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.福建,
R.layout.spinner_checked_text);
} else if (pro.equals("江西")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.江西,
R.layout.spinner_checked_text);
} else if (pro.equals("山东")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.山东,
R.layout.spinner_checked_text);
} else if (pro.equals("河南")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.河南,
R.layout.spinner_checked_text);
} else if (pro.equals("湖北")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.湖北,
R.layout.spinner_checked_text);
} else if (pro.equals("湖南")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.湖南,
R.layout.spinner_checked_text);
} else if (pro.equals("广东")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.广东,
R.layout.spinner_checked_text);
} else if (pro.equals("广西")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.广西,
R.layout.spinner_checked_text);
} else if (pro.equals("海南")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.海南,
R.layout.spinner_checked_text);
} else if (pro.equals("重庆")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.重庆,
R.layout.spinner_checked_text);
} else if (pro.equals("四川")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.四川,
R.layout.spinner_checked_text);
} else if (pro.equals("贵州")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.贵州,
R.layout.spinner_checked_text);
} else if (pro.equals("云南")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.云南,
R.layout.spinner_checked_text);
} else if (pro.equals("西藏")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.西藏,
R.layout.spinner_checked_text);
} else if (pro.equals("陕西")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.陕西,
R.layout.spinner_checked_text);
} else if (pro.equals("甘肃")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.甘肃,
R.layout.spinner_checked_text);
} else if (pro.equals("青海")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.青海,
R.layout.spinner_checked_text);
} else if (pro.equals("宁夏")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.宁夏,
R.layout.spinner_checked_text);
} else if (pro.equals("新疆")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.新疆,
R.layout.spinner_checked_text);
} else if (pro.equals("台湾")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.台湾,
R.layout.spinner_checked_text);
} else if (pro.equals("香港")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.香港,
R.layout.spinner_checked_text);
} else if (pro.equals("澳门")) {
cityadapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.澳门,
R.layout.spinner_checked_text);
}
listView.setAdapter(cityadapter);
}
});
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView parent, View view, int position, long id) {
String item = (String) cityadapter.getItem(position);
Toast.makeText(MainActivity.this, item, Toast.LENGTH_SHORT).show();
popupWindow.dismiss();
}
});
ViewGroup.LayoutParams layoutParams = radioGroup.getLayoutParams();
layoutParams.width = RadioGroup.LayoutParams.MATCH_PARENT;
//12dp---->转换成像素
int dpValue = 12;
float scale = getResources().getDisplayMetrics().density;
int pxValue = (int) (dpValue * scale + 0.5f);
int top = pxValue;
int bottom = pxValue;
for (int i = 0; i < provinces.length; i++) {
RadioButton radioButton = new RadioButton(this);
radioButton.setId(i);
radioButton.setChecked(false);
radioButton.setText(provinces[i]);
radioButton.setTextColor(getResources().getColorStateList(R.color.colorAccent));
radioButton.setButtonDrawable(new ColorDrawable(Color.TRANSPARENT));
radioButton.setBackgroundResource(R.drawable.bg_rb_d_sc);
radioButton.setLayoutParams(layoutParams);
radioButton.setPadding(0, top, 0, bottom);
radioButton.setGravity(Gravity.CENTER);
radioGroup.addView(radioButton);
}
popupWindow.setContentView(popView);
popupWindow.setOutsideTouchable(true);
popupWindow.setBackgroundDrawable(new ColorDrawable(Color.WHITE));
RadioButton rb = (RadioButton) radioGroup.getChildAt(0);
rb.setChecked(true);
}
popupWindow.showAsDropDown(tv1);
}
}主XML:
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/root_ll"
android:background="#FFFFFF"
android:orientation="vertical">
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:orientation="horizontal">
android:id="@+id/tv1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:text="全国" />
PopupWindow布局:
android:layout_width="match_parent"
android:background="#ffffff"
android:orientation="horizontal"
android:layout_height="match_parent">
android:scrollbars="none"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1">
android:id="@+id/rg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
android:layout_marginLeft="20dp"
android:id="@+id/lv"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1.5">
Spinner_Checked_layout布局:
android:paddingTop="12dp"
android:paddingBottom="12dp"
android:gravity="center"
android:background="@android:color/white"
android:layout_width="match_parent"
android:layout_height="wrap_content">
Drawable文件:
背景文件
single drawble文件
android:width="10dp"
android:color="#1E7FFF" />
normal drawble文件
android:shape="rectangle">