2023年11月23日发(作者：)

Android动态获取系统权限+调⽤外部应⽤读取本地⽂件（TBS+⾃定义）

⼀、获取动态权限

1.创建Android应⽤，在配置⽂件中添加临时访问⽂件权限

<provider

android:name="ovider"

android:authorities="_input"

android:exported="false"

android:grantUriPermissions="true">

<meta-data

android:name="_PROVIDER_PATHS"

android:resource="@xml/file_paths" />

provider>

新建xml⽂件，配置name和path路径

xml version="1.0" encoding="utf-8"?>

<paths>

<external-path

name="camera_photos"

path="/" />

paths>

2.配置系统需要⽤到的系统权限

<uses-permission android:name="_EXTERNAL_STORAGE" />

<uses-permission android:name="_EXTERNAL_STORAGE" />

<uses-permission

android:name="_SETTINGS"

tools:ignore="ProtectedPermissions" />

3.编写申请动态权限⽅法，在onCreate()⽅法中调⽤

//申请权限

private boolean getPermission(Activity activity){

boolean rs=false;

// 声明⼀个集合，在后⾯的代码中⽤来存储⽤户拒绝授权的权

List permissionList = new ArrayList<>();

String[] permissions = new String[]{

_EXTERNAL_STORAGE,//读取内存卡

_EXTERNAL_STORAGE,//写⼊内存卡

// _UNMOUNT_FILESYSTEMS,//允许挂载和反挂载⽂件系统可移动存储

// _PHONE_STATE,//读取⼿机状态和⾝份

/* _WIFI_STATE,//获取使⽤Wi-Fi等WLAN⽆线⽹络

_WIFI_STATE,//允许程序改变Wi-Fi连接状态

_NETWORK_STATE,//允许程序访问有关GSM⽹络信息

_NETWORK_STATE,//允许程序改变⽹络连接状态

ET,//访问⽹络连接，可能产⽣GPRS流量

OTH,//允许程序连接到已配对的蓝⽛设备

,//相机

_SETTINGS,//允许程序读取或写⼊系统设置*/

};

();

for (int i = 0; i < ; i++) {

if (elfPermission(activity, permissions[i]) != SION_GRANTED) {

Log.e(TAG,"权限未允许："+permissions[i]+"....");

(permissions[i]);

}

}

if (y()) {//未授予的权限为空，表⽰都授予了

Log.e(TAG,"已经获取到了所有权限");

return true;

} else {//请求权限⽅法

String[] spermissions = y(new String[()]);//将List转为数组

tPermissions(activity, spermissions, 1);

}

return rs;

}

4.处理授权回调

@Override

public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

super.onRequestPermissionsResult(requestCode, permissions, grantResults);

if(requestCode==1){

if (_INT >= N_CODES.M) {

boolean request_rs=true;

for(int i=0;i<;i++){

if (grantResults[i] != SION_GRANTED) {

request_rs=false;

}

}

if(request_rs){

Log.e("软件获取权限结果：","获取软件权限成功");

init();

}else{

xt(this, "您拒绝了软件应⽤权限，因此⽆法使⽤该软件！", _LONG).show();

showDialogTipUserGoToAppSettting();

}

}

}

}

若未获取的权限，则提醒⽤户⼿动开启权限

/**

* 提⽰⽤户去应⽤设置界⾯⼿动开启权限

*/

private void showDialogTipUserGoToAppSettting() {

new r(this)

.setTitle("存储权限不可⽤")

.setMessage("请在-应⽤设置-权限-中，允许应⽤使⽤存储权限来保存⽤户数据")

.setPositiveButton("⽴即开启", new kListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

// 跳转到应⽤设置界⾯

goToAppSetting();

ocess(());

}

})

.setNegativeButton("取消", new kListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

ocess(());

}

}).setCancelable(false).show();

}

/**

* 跳转到当前应⽤的设置界⾯

*/

private void goToAppSetting() {

Intent intent = new Intent();

ion(_APPLICATION_DETAILS_SETTINGS);

Uri uri = rts("package", getPackageName(), null);

a(uri);

startActivityForResult(intent, 123);

}

⼆、调⽤应⽤打开本地⽂件

第⼀种，根据⽂件类型⾃动选取应⽤打开⽂件

1.创建⽂件类型数组

/**

* -- MIME 列表 --

*/

public static final String[][] MIME_MapTable = {

// --{后缀名， MIME类型} --

{".3gp", "video/3gpp"},{".3gpp", "video/3gpp"},{".aac", "audio/x-mpeg"},

{".amr", "audio/x-mpeg"},{".apk", "application/e-archive"},

{".avi", "video/x-msvideo"},

{".aab", "application/x-authoware-bin"},

{".aam", "application/x-authoware-map"},

{".aas", "application/x-authoware-seg"},

{".ai", "application/postscript"},

{".aif", "audio/x-aiff"},

{".aifc", "audio/x-aiff"},

{".aiff", "audio/x-aiff"},

{".als", "audio/x-alpha5"},

{".au", "audio/basic"},

{".ief", "image/ief"},

{".mrm", "application/x-mrm"},

{".si6", "image/si6"},

{".wma", "audio/x-ms-wma"},

{".wmv", "audio/x-ms-wmv"},

{".wi", "image/wavelet"},

{".wis", "application/x-InstallShield"},

{".wm", "video/x-ms-wm"},

{".wmd", "application/x-ms-wmd"},

{".wmf", "application/x-msmetafile"},

{".wml", "text/"},

{".wmlc", "application/"},

{".wmls", "text/ipt"},

{".wmlsc", "application/iptc"},

{".wmlscript", "text/ipt"},

{".wmv", "video/x-ms-wmv"},

{".wmx", "video/x-ms-wmx"},

{".wmz", "application/x-ms-wmz"},

{".wpng", "image/x-up-wpng"},

{".wps", "application/-works"},

{".wpt", "x-lml/x-gps"},

{".wri", "application/x-mswrite"},

{".wrl", "x-world/x-vrml"},

{".wrz", "x-world/x-vrml"},

{".ws", "text/ipt"},

{".wsc", "application/iptc"},

{".wv", "video/wavelet"},

{".wvx", "video/x-ms-wvx"},

{".wxl", "application/x-wxl"},

{".x-gzip", "application/x-gzip"},

String end = ing(dotIndex, ()).toLowerCase();

if (end == "") {

return type;

}

for (int i = 0; i < MIME_; i++) {

if ((MIME_MapTable[i][0])) {

type = MIME_MapTable[i][1];

}

}

return type;

}

第⼆种，调⽤TBS服务打开⽂件

1.引⼊jar包或gradle

//引⼊腾讯x5 服务

implementation ':sdk:43939'

2.初始化TBS、调⽤⽅法打开⽂件

// 在调⽤TBS初始化、创建WebView之前进⾏如下配置

HashMap map = new HashMap();

(_SETTINGS_USE_SPEEDY_CLASSLOADER, true);

(_SETTINGS_USE_DEXLOADER_SERVICE, true);

sSettings(map);

leReader(MainActivity.this, (position).getUrl(), null, new ValueCallback() {

@Override

public void onReceiveValue(String s) {

// xt(getApplicationContext(),s,_SHORT).show();

}

});

~~~~~~~~~~~~~~Over~~~~~~~~~~~~~~~~~~