本篇将会封装一个工具，解决安卓权限申请的问题
最终效果：
- 授权的情况
agree.gif
对应的日志
image.png
-
不授权的情况
refect.gif
对应的日志
image.png
步骤一
在安卓工程目录下 app ---> src ---> main ---> AndroidManifest.xml ,在AndroidManifest.xml下添加需要的权限，如下
image.png
步骤二
封装一个申请权限的工具类Permission,代码里面有注释，就不赘述了
package com.example.espprovisiondemo;
import android.Manifest;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.os.Build;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import java.util.ArrayList;
import java.util.List;
public class Permission {
//需要申请权限的数组
private String[] permissions = {
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.BLUETOOTH_ADMIN,
Manifest.permission.BLUETOOTH_CONNECT,
Manifest.permission.BLUETOOTH,
Manifest.permission.BLUETOOTH_SCAN,
};
//保存真正需要去申请的权限
private List<String> permissionList = new ArrayList<>();
public static int RequestCode = 100;
public void checkPermissions(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
for (int i = 0; i < permissions.length; i++) {
if (ContextCompat.checkSelfPermission(activity,permissions[i]) != PackageManager.PERMISSION_GRANTED) {
permissionList.add(permissions[i]);
}
}
//有需要去动态申请的权限
if (permissionList.size() > 0) {
requestPermission(activity);
}
}
}
//去申请的权限
public void requestPermission(Activity activity) {
ActivityCompat.requestPermissions(activity,permissionList.toArray(new String[permissionList.size()]),RequestCode);
}
}
步骤三
在activity里面使用工具类
package com.example.espprovisiondemo;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.util.Log;
public class MainActivity extends AppCompatActivity {
// private Permission permission;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Permission permission = new Permission();
permission.checkPermissions(this);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == Permission.RequestCode) {
for (int i = 0; i < grantResults.length; i++) {
if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
Log.e("p","拒绝的权限名称：" + permissions[i]);
Log.e("p","拒绝的权限结果：" + grantResults[i]);
Log.e("p","有权限未授权，可以弹框出来，让客户去手机设置界面授权。。。");
}else {
Log.e("p","授权的权限名称：" + permissions[i]);
Log.e("p","授权的权限结果：" + grantResults[i]);
}
}
}
}
}
结尾
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