StartActivity.java

package com.example.mockgps;

import android.Manifest;
import android.annotation.TargetApi;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;

import java.util.ArrayList;

public class StartActivity extends AppCompatActivity {

    private Button startBtn;
    private String permissionInfo;
    private final int SDK_PERMISSION_REQUEST = 127;
    private ArrayList<String> permissions;
    private Handler handler;
    private boolean isStart;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.welcome);
        startBtn=(Button)findViewById(R.id.startButton);
        permissions = new ArrayList<String>();
        getPersimmions();
        isStart=false;
        Log.d("START",""+permissions.size());
        if (permissions.size()==0){
            new Handler().postDelayed(new Runnable() {
                public void run() {
                    if (!isStart){
                        isStart=true;
                        startMain();
                    }
                }
            }, 2000);
        }
        startBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (!isStart){
                    isStart=true;
                    startMain();
                }
            }
        });


    }


    private void startMain(){
        Intent intent=new Intent(StartActivity.this,MainActivity.class);
        startActivity(intent);
        StartActivity.this.finish();
    }


    @TargetApi(23)
    private void getPersimmions() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
//            ArrayList<String> permissions = new ArrayList<String>();
            /***
             * 定位权限为必须权限，用户如果禁止，则每次进入都会申请
             */
            // 定位精确位置
            if (checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                permissions.add(Manifest.permission.ACCESS_FINE_LOCATION);
            }
            if (checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                permissions.add(Manifest.permission.ACCESS_COARSE_LOCATION);
            }
            //悬浮窗
//            if (checkSelfPermission(Manifest.permission.SYSTEM_ALERT_WINDOW) != PackageManager.PERMISSION_GRANTED) {
//                permissions.add(Manifest.permission.SYSTEM_ALERT_WINDOW);
//            }
            /*
             * 读写权限和电话状态权限非必要权限(建议授予)只会申请一次，用户同意或者禁止，只会弹一次
             */
            // 读写权限
            if (addPermission(permissions, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
                permissionInfo += "Manifest.permission.WRITE_EXTERNAL_STORAGE Deny \n";
            }
            // 读取电话状态权限
//            if (addPermission(permissions, Manifest.permission.READ_PHONE_STATE)) {
//                permissionInfo += "Manifest.permission.READ_PHONE_STATE Deny \n";
//            }

            if (permissions.size() > 0) {
                requestPermissions(permissions.toArray(new String[permissions.size()]), SDK_PERMISSION_REQUEST);
            }
        }
    }

    @TargetApi(23)
    private boolean addPermission(ArrayList<String> permissionsList, String permission) {
        if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) { // 如果应用没有获得对应权限,则添加到列表中,准备批量申请
            if (shouldShowRequestPermissionRationale(permission)) {
                return true;
            } else {
                permissionsList.add(permission);
                return false;
            }

        } else {
            return true;
        }
    }

    @TargetApi(23)
    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        // TODO Auto-generated method stub
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

    }


}