It's time for me to avoid all kinds of CSDs. I've been working on CSDs for four hours. I really hope it's time for me to avoid CSDs. I've been working on CSDs for four hours. It's time for me to write CSDs...
1, Gaode API Application
API high website
After we registered the developer account, we found this interface
When we add, we will encounter the following two options, which are also the key to the success of our project
1.1 SHA1 acquisition
Many of the teaching materials I'm looking for are asking us to create APK ourselves, and then what is re - creation jks, isn't it fragrant to get it directly???
C: There will be one under \ users \ twy (your own user name)
After entering, enter cmd directly on this page
Enter in cmd
keytool -v -list -keystore debug.keystore (keystore (my name)
The keystore password in the figure above defaults to android
(Note: you can't see the password, just Enter after entering)
1.1 package name acquisition
2, In project configuration
2.1 configuring libs
After configuring the above information, we remember to download the official lib package
Just click here to download
Download Android map SDK (if you have other needs, please find it here)
After downloading
Move directly to us
Download and unzip the file and place it in the lis directory. In this case, you need to add it into the environment variable
Add As Library
2.2 configure androidmanifest xml
It's directly on our Android manifest XML plus two sentences
First sentence:
<meta-data android:name="com.amap.api.v2.apikey" android:value="Yours key"></meta-data>
<service android:name="com.amap.api.location.APSService"></service>
Your key will be generated by Gaode. Remember to go back and copy it
Second sentence:
<uses-permission android:name="android.permission.INTERNET" />
<!--Used for network positioning-->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
<!--For access GPS location-->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
<!--Obtain operator information to support the provision of interfaces related to operator information-->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<!--For access wifi Network information, wifi The information will be used for network positioning-->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<!--This permission is used to get wifi Access to, wifi Information will be used for network positioning-->
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
<!--It is used to access the network. Network positioning requires Internet access-->
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<!--Used to read the current status of the phone-->
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
<!--Write to the expansion storage and write data to the expansion card for writing cache positioning data-->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<!--Used to apply for call A-GPS modular-->
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"></uses-permission>
<!--It is used to apply for obtaining Bluetooth information for indoor positioning-->
<uses-permission android:name="android.permission.BLUETOOTH"></uses-permission>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"></uses-permission>
Add effect
2.3 writing MainActivity
package com.example.myapplication;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import com.amap.api.location.AMapLocation;
import com.amap.api.location.AMapLocationClient;
import com.amap.api.location.AMapLocationClientOption;
import com.amap.api.location.AMapLocationListener;
public class MainActivity extends AppCompatActivity {
//Declare AMapLocationClient class object
public AMapLocationClient mLocationClient = null;
//Declare location callback listener
public AMapLocationListener mLocationListener = new MyAMapLocationListener();
//Declare AMapLocationClientOption object
public AMapLocationClientOption mLocationOption = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init();
}
private void init() {
//Initialize positioning
try {
AMapLocationClient.updatePrivacyShow(this, true, true);
AMapLocationClient.updatePrivacyAgree(this, true);
mLocationClient = new AMapLocationClient(getApplicationContext());
} catch (Exception e) {
e.printStackTrace();
}
//Set location callback listening
mLocationClient.setLocationListener(mLocationListener);
//Initialize the AMapLocationClientOption object
mLocationOption = new AMapLocationClientOption();
//Set the location mode to amaplocationmode Hight_ Accuracy, high precision mode.
mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy);
//Get the location result once:
//This method defaults to false.
mLocationOption.setOnceLocation(false);
//Obtain the positioning result with the highest accuracy in the last 3s:
//Set the setoncelocationlast (Boolean b) interface to true. When starting positioning, the SDK will return the positioning result with the highest accuracy in the last 3s. If it is set to true, the setOnceLocation(boolean b) interface will also be set to true. Otherwise, it will not. The default is false.
mLocationOption.setOnceLocationLatest(true);
//Set whether to return address information (default return address information)
mLocationOption.setNeedAddress(true);
//Set whether to allow analog location. The default value is false. Analog location is not allowed
mLocationOption.setMockEnable(false);
//Turn off caching mechanism
mLocationOption.setLocationCacheEnable(false);
//Set positioning parameters for positioning client objects
mLocationClient.setLocationOption(mLocationOption);
//Start positioning
mLocationClient.startLocation();
}
private class MyAMapLocationListener implements AMapLocationListener {
@Override
public void onLocationChanged(AMapLocation aMapLocation) {
if (aMapLocation != null) {
if (aMapLocation.getErrorCode() == 0) {
Log.e("Location:", aMapLocation.getAddress());
} else {
//When positioning fails, the reason for the failure can be determined through ErrCode information. errInfo is the error information. See the error code table for details.
Log.e("AmapError", "location Error, ErrCode:"
+ aMapLocation.getErrorCode() + ", errInfo:"
+ aMapLocation.getErrorInfo());
}
}
}
}
}
3, Realization effect
4, Summary of common errors and Solutions
1.import android.support.v7.app.AppCompatActivity reported an error
as a result of. support.v7 doesn't support this method anymore. Change to the latest calling method
import androidx.appcompat.app.AppCompatActivity;
2. Errorcode: 555570 please set the privacy policy before using the loc SDK function. Whether to pop up and inform the user
This is the official document given to us. Unfortunately, there is an error. In the latest version, we not only need to use try to accept the return for this object, but also need to add it in front
AMapLocationClient.updatePrivacyShow(this, true, true); AMapLocationClient.updatePrivacyAgree(this, true);
3.minSDK(API XX)>devicesdk(API XX) on device XXX
In other words, the minimum version we support is higher. We can directly find build gradle
(there are two files in build.gradle. We open build.gradle in the app directory!!!)
4. E/AmapError: location Error, ErrCode:4, errInfo: abnormal network connection http://lbs.amap.com/api/android-location-sdk/guide/utilities/errorcode/
Brother, our mobile phones are not connected to the Internet