APP 經(jīng)常會用到地理位置授權(quán)，下面介紹下Android端的gps 和懸浮窗的封裝
這里只展示部分代碼，交互類的創(chuàng)建 傳送門
效果圖
這里有個問題，由于Android 各大廠商都不一樣，所以當用戶拒絕地理位置授權(quán)的時候，不能準確的調(diào)到app的對應(yīng)權(quán)限管理，所以這里只是跳轉(zhuǎn)了應(yīng)用信息頁面
應(yīng)用詳情頁
@ReactMethod //檢查浮動窗是否開啟
public void checkFloatWindowOpen() {
final Activity activity = getCurrentActivity() ;
if(Build.VERSION.SDK_INT >= 23){
if (!Settings.canDrawOverlays(mReactContent)) {
AlertDialog.Builder builder=new AlertDialog.Builder(activity);
builder.setTitle("APP未開啟懸浮窗權(quán)限");
builder.setMessage("請允許APP開啟懸浮窗權(quán)限");
builder.setPositiveButton("去設(shè)置", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int which)
{
//第一個參數(shù)dialog是點擊的確定按鈕所屬的Dialog對象,第二個參數(shù)which是按鈕的標示值
//系統(tǒng)定位未打開
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
Uri.parse("package:" + activity.getPackageName()));
activity.startActivityForResult(intent, 1234);
}
});
builder.show();
} else {
//startService(floatWinIntent);
// activity.startService(floatWinIntent);
}
};
}
@ReactMethod
public void checkGpsOpen(){
final Activity activity = getCurrentActivity() ;
LocationManager locationManager
= (LocationManager) mReactContent.getSystemService(Context.LOCATION_SERVICE);
// 通過GPS衛(wèi)星定位，定位級別可以精確到街（通過24顆衛(wèi)星定位，在室外和空曠的地方定位準確、速度快）
boolean gps = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
// 通過WLAN或移動網(wǎng)絡(luò)(3G/2G)確定的位置（也稱作AGPS，輔助GPS定位。主要用于在室內(nèi)或遮蓋物（建筑群或茂密的深林等）密集的地方定位）
// boolean network = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (gps ) { //打開了定位服務(wù)
//判斷應(yīng)用是否授權(quán)允許 定位
int checkResult = this.checkOp(this.getReactApplicationContext(),2,AppOpsManager.OPSTR_FINE_LOCATION);
if (AppOpsManagerCompat.MODE_IGNORED == checkResult ) {
AlertDialog.Builder builder=new AlertDialog.Builder(activity);
builder.setTitle("手機已關(guān)閉位置權(quán)限");
builder.setMessage("請在 設(shè)置-應(yīng)用權(quán)限 (將位置權(quán)限打開");
builder.setPositiveButton("去設(shè)置", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int which)
{
//第一個參數(shù)dialog是點擊的確定按鈕所屬的Dialog對象,第二個參數(shù)which是按鈕的標示值
//系統(tǒng)定位未打開
// Intent localIntent = new Intent(Settings.ACTION_SETTINGS);
Intent localIntent = new Intent();
localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (Build.VERSION.SDK_INT >= 9) {
localIntent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");
localIntent.setData(Uri.fromParts("package", activity.getPackageName(), null));
} else if (Build.VERSION.SDK_INT <= 8) {
localIntent.setAction(Intent.ACTION_VIEW);
localIntent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails");
localIntent.putExtra("com.android.settings.ApplicationPkgName", activity.getPackageName());
}
activity.startActivity(localIntent);
}
});
builder.show();
}
}else{
//創(chuàng)建AlertDialog的構(gòu)造器的對象
AlertDialog.Builder builder=new AlertDialog.Builder(activity);
builder.setTitle("手機未開啟位置服務(wù)");
builder.setMessage("請在 設(shè)置-位置信息 (將位置服務(wù)打開))");
builder.setPositiveButton("去設(shè)置", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int which)
{
//第一個參數(shù)dialog是點擊的確定按鈕所屬的Dialog對象,第二個參數(shù)which是按鈕的標示值
//系統(tǒng)定位未打開
Intent intent = new Intent();
intent.setAction(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
activity.startActivityForResult(intent, 1315);
}
});
builder.show();
}
}
public int checkOp(Context context, int op, String opString) {
final int version = Build.VERSION.SDK_INT;
if (version >= 19) {
Object object = context.getSystemService(Context.APP_OPS_SERVICE);
// Object object = context.getSystemService("appops");
Class c = object.getClass();
try {
Class[] cArg = new Class[3];
cArg[0] = int.class;
cArg[1] = int.class;
cArg[2] = String.class;
Method lMethod = c.getDeclaredMethod("checkOp", cArg);
return (Integer) lMethod.invoke(object, op, Binder.getCallingUid(), context.getPackageName());
} catch (Exception e) {
e.printStackTrace();
if (Build.VERSION.SDK_INT >= 23) {
return AppOpsManagerCompat.noteOp(context, opString,context.getApplicationInfo().uid,
context.getPackageName());
}
}
}
return -1;
}
關(guān)于Android的彈出框 AlertDialog的使用，最后不要忘記使用 show()把其顯示。
