MainActivity.java
package com.example.map;
import android.Manifest;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import com.amap.api.location.AMapLocationClient;
import com.amap.api.maps.AMap;
import com.amap.api.maps.CameraUpdateFactory;
import com.amap.api.maps.MapView;
import com.amap.api.maps.MapsInitializer;
import com.amap.api.maps.UiSettings;
import com.amap.api.maps.model.MyLocationStyle;
import com.amap.api.services.core.ServiceSettings;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends Activity {
private MapView mMapView = null;
private AMap aMap;
//是否需要检测后台定位权限，设置为true时，如果用户没有给予后台定位权限会弹窗提示
private boolean needCheckBackLocation = true;
//如果设置了target > 28，需要增加这个权限，否则不会弹出"始终允许"这个选择框
private static String BACK_LOCATION_PERMISSION = "android.permission.ACCESS_BACKGROUND_LOCATION";
private MyLocationStyle myLocationStyle;
//定义一个UiSettings对象
private UiSettings mUiSettings;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
AMapLocationClient.updatePrivacyShow(this,true,true);
AMapLocationClient.updatePrivacyAgree(this,true);
MapsInitializer.updatePrivacyShow(this,true,true);
MapsInitializer.updatePrivacyAgree(this,true);
ServiceSettings.updatePrivacyShow(this,true,true);
ServiceSettings.updatePrivacyAgree(this,true);
setContentView(R.layout.activity_main);
showInformation();
//定义了一个地图view
mMapView = (MapView) findViewById(R.id.map);
mMapView.onCreate(savedInstanceState);// 此方法须覆写，虚拟机需要在很多情况下保存地图绘制的当前状态。
//显示地图
intView();
//定位蓝点显示
intLocation();
//地图ui显示
intUiControl();
//地图poi搜索
intPoi();
}
@Override
protected void onDestroy() {
super.onDestroy();
//在activity执行onDestroy时执行mMapView.onDestroy()，销毁地图
mMapView.onDestroy();
}
@Override
protected void onPause() {
super.onPause();
//在activity执行onPause时执行mMapView.onPause ()，暂停地图的绘制
mMapView.onPause();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
//在activity执行onSaveInstanceState时执行mMapView.onSaveInstanceState (outState)，保存地图当前的状态
mMapView.onSaveInstanceState(outState);
}
/**
* poi搜索
*/
private void intPoi(){
new PoiAroundSearchActivity();
}
/**
* 显示地图
*/
private void intView(){
//初始化地图控制器对象
if (aMap == null) {
aMap = mMapView.getMap();
}
aMap.moveCamera(CameraUpdateFactory.zoomTo(16));//设置地图的放缩,等级16
}
/**
* 定位蓝点显示
*/
private void intLocation(){
myLocationStyle = new MyLocationStyle();//初始化定位蓝点样式类
//myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_SHOW);//只定位一次。
//myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATE) ;//定位一次，且将视角移动到地图中心点。
//myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_FOLLOW) ;//连续定位、且将视角移动到地图中心点，定位蓝点跟随设备移动。（1秒1次定位）
//myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_MAP_ROTATE);//连续定位、且将视角移动到地图中心点，地图依照设备方向旋转，定位点会跟随设备移动。（1秒1次定位）
//myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE);//连续定位、且将视角移动到地图中心点，定位点依照设备方向旋转，并且会跟随设备移动。（1秒1次定位）默认执行此种模式。
//以下三种模式从5.1.0版本开始提供
//myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE_NO_CENTER);//连续定位、蓝点不会移动到地图中心点，定位点依照设备方向旋转，并且蓝点会跟随设备移动。
myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_FOLLOW_NO_CENTER);//连续定位、蓝点不会移动到地图中心点，并且蓝点会跟随设备移动。
//myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_MAP_ROTATE_NO_CENTER);//连续定位、蓝点不会移动到地图中心点，地图依照设备方向旋转，并且蓝点会跟随设备移动。
myLocationStyle.interval(2000); //设置连续定位模式下的定位间隔，只在连续定位模式下生效，单次定位模式下不会生效。单位为毫秒。
myLocationStyle.showMyLocation(true);
aMap.setMyLocationStyle(myLocationStyle);//设置定位蓝点的Style
aMap.getUiSettings().setMyLocationButtonEnabled(true);//设置默认定位按钮是否显示，非必需设置。
aMap.setMyLocationEnabled(true);// 设置为true表示启动显示定位蓝点，false表示隐藏定位蓝点并不进行定位，默认是false。
}
/**
* 地图ui控件
*/
private void intUiControl(){
//实例化UiSettings类对象
mUiSettings = aMap.getUiSettings();
//显示比例尺 默认不显示（false）
mUiSettings.setScaleControlsEnabled(true);
//显示指南针，默认不显示（false）
mUiSettings.setCompassEnabled(true);
}
/**
* 显示提示信息
*
* @since 2.5.0
*/
private void showInformation() {
try{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("提示");
builder.setMessage("欢迎使用电信181夏勇的地图 \n感谢杨健老师的支持与帮助");
// 拒绝, 退出应用
builder.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
try{
finish();
} catch (Throwable e) {
e.printStackTrace();
}
}
});
builder.setPositiveButton("确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
try {
} catch (Throwable e) {
e.printStackTrace();
}
}
});
builder.setCancelable(false);
builder.show();
}catch(Throwable e){
e.printStackTrace();
}
}
/*************************************** 权限检查******************************************************/
/**
* 需要进行检测的权限数组
*/
protected String[] needPermissions = {
Manifest.permission.ACCESS_COARSE_LOCATION,
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.READ_PHONE_STATE,
BACK_LOCATION_PERMISSION
};
private static final int PERMISSON_REQUESTCODE = 0;
/**
* 判断是否需要检测，防止不停的弹框
*/
private boolean isNeedCheck = true;
@Override
protected void onResume() {
//在activity执行onResume时执行mMapView.onResume ()，重新绘制加载地图
mMapView.onResume();
try{
super.onResume();
if (Build.VERSION.SDK_INT >= 23) {
if (isNeedCheck) {
checkPermissions(needPermissions);
}
}
}catch(Throwable e){
e.printStackTrace();
}
}
/**
* @param
* @since 2.5.0
*/
@TargetApi(23)
private void checkPermissions(String... permissions) {
try{
if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) {
List<String> needRequestPermissonList = findDeniedPermissions(permissions);
if (null != needRequestPermissonList
&& needRequestPermissonList.size() > 0) {
try {
String[] array = needRequestPermissonList.toArray(new String[needRequestPermissonList.size()]);
Method method = getClass().getMethod("requestPermissions", new Class[]{String[].class, int.class});
method.invoke(this, array, 0);
} catch (Throwable e) {
}
}
}
}catch(Throwable e){
e.printStackTrace();
}
}
/**
* 获取权限集中需要申请权限的列表
*
* @param permissions
* @return
* @since 2.5.0
*/
@TargetApi(23)
private List<String> findDeniedPermissions(String[] permissions) {
try{
List<String> needRequestPermissonList = new ArrayList<String>();
if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) {
for (String perm : permissions) {
if (checkMySelfPermission(perm) != PackageManager.PERMISSION_GRANTED
|| shouldShowMyRequestPermissionRationale(perm)) {
if(!needCheckBackLocation
&& BACK_LOCATION_PERMISSION.equals(perm)) {
continue;
}
needRequestPermissonList.add(perm);
}
}
}
return needRequestPermissonList;
}catch(Throwable e){
e.printStackTrace();
}
return null;
}
private int checkMySelfPermission(String perm) {
try {
Method method = getClass().getMethod("checkSelfPermission", new Class[]{String.class});
Integer permissionInt = (Integer) method.invoke(this, perm);
return permissionInt;
} catch (Throwable e) {
}
return -1;
}
private boolean shouldShowMyRequestPermissionRationale(String perm) {
try {
Method method = getClass().getMethod("shouldShowRequestPermissionRationale", new Class[]{String.class});
Boolean permissionInt = (Boolean) method.invoke(this, perm);
return permissionInt;
} catch (Throwable e) {
}
return false;
}
/**
* 检测是否说有的权限都已经授权
*
* @param grantResults
* @return
* @since 2.5.0
*/
private boolean verifyPermissions(int[] grantResults) {
try{
for (int result : grantResults) {
if (result != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
}catch(Throwable e){
e.printStackTrace();
}
return true;
}
@TargetApi(23)
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] paramArrayOfInt) {
try{
if (Build.VERSION.SDK_INT >= 23) {
if (requestCode == PERMISSON_REQUESTCODE) {
if (!verifyPermissions(paramArrayOfInt)) {
showMissingPermissionDialog();
isNeedCheck = false;
}
}
}
}catch(Throwable e){
e.printStackTrace();
}
}
/**
* 显示提示信息
*
* @since 2.5.0
*/
private void showMissingPermissionDialog() {
try{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("提示");
builder.setMessage("当前应用缺少必要权限。\n请点击\"设置\"-\"权限\"-打开所需权限");
// 拒绝, 退出应用
builder.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
try{
finish();
} catch (Throwable e) {
e.printStackTrace();
}
}
});
builder.setPositiveButton("设置",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
try {
startAppSettings();
} catch (Throwable e) {
e.printStackTrace();
}
}
});
builder.setCancelable(false);
builder.show();
}catch(Throwable e){
e.printStackTrace();
}
}
/**
* 启动应用的设置
*
* @since 2.5.0
*/
private void startAppSettings() {
try{
Intent intent = new Intent(
Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
intent.setData(Uri.parse("package:" + getPackageName()));
startActivity(intent);
} catch (Throwable e) {
e.printStackTrace();
}
}
}activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
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"
tools:context=".MainActivity">
<com.amap.api.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true">
</com.amap.api.maps.MapView>
<RelativeLayout
android:id="@+id/search_bar_layout"
android:layout_width="280dp"
android:layout_height="48dp"
android:layout_marginStart="50dp"
android:layout_marginTop="8dp"
android:gravity="center_vertical"
android:orientation="horizontal"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="MissingConstraints">
<TextView
android:id="@+id/btn_search"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:background="@drawable/offlinearrow_tab2_pressed"
android:clickable="true"
android:gravity="center"
android:paddingStart="12dp"
android:paddingLeft="12dp"
android:paddingEnd="12dp"
android:paddingRight="12dp"
android:text="搜索"
android:textColor="@color/white"
android:textSize="12dp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerVertical="true"
android:layout_toStartOf="@+id/btn_search"
android:layout_toLeftOf="@+id/btn_search"
android:background="@drawable/search_input_half"
android:clickable="true"
android:gravity="center_vertical">
<EditText
android:id="@+id/input_edittext"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/transparent"
android:drawableLeft="@drawable/search_input"
android:hint="请输入搜索关键字"
android:singleLine="true"
android:textColor="@color/gary"
android:textColorHint="@color/darkgrey"
android:textSize="14sp" />
</LinearLayout>
</RelativeLayout>
<RelativeLayout
android:id="@+id/poi_detail"
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_alignParentBottom="true"
android:background="@drawable/border_bg"
android:visibility="gone"
tools:ignore="MissingConstraints">
<TextView
android:id="@+id/poi_name"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginLeft="12dp"
android:layout_marginStart="12dp"
android:ellipsize="end"
android:gravity="center_vertical"
android:singleLine="true"
android:textColor="#5566b8"
android:textSize="15sp" />
<TextView
android:id="@+id/poi_address"
android:layout_width="wrap_content"
android:layout_height="25dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@id/poi_name"
android:layout_marginLeft="12dp"
android:layout_marginStart="12dp"
android:gravity="center_vertical"
android:singleLine="true"
android:textColor="#333333"
android:textSize="15sp" />
<TextView
android:id="@+id/poi_info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@id/poi_address"
android:layout_marginLeft="12dp"
android:layout_marginStart="12dp"
android:gravity="center_vertical"
android:textColor="#333333"
android:textSize="12sp" />
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
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