android app开发遇到的一些问题（二）

android 6.0 动态权限

if (Build.VERSION.SDK_INT >= 23) {
if(!Settings.canDrawOverlays(this)) {
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
startActivity(intent);
return;
} else {
//绘ui代码, 这里说明6.0系统已经有权限了
}
} else {
//绘ui代码,这里android6.0以下的系统直接绘出即可
}

//获取
if (Build.VERSION.SDK_INT >= 23) {
int checkPermission = ContextCompat.checkSelfPermission(HomeSettingActivity.this, android.Manifest.permission.READ_PHONE_STATE);
if (checkOverLayPermission != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(HomeSettingActivity.this, new String[]{android.Manifest.permission.READ_PHONE_STATE}, READ_PHONE_STATE_REQ_CODE);
return;
}
}else{
//SDK_INT < 23 code handler
}
.....
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (READ_PHONE_STATE_REQ_CODE == requestCode) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
updateitemView.setCheckBox(true);
TelephonyManager tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
String simSerialNumber = tm.getSimSerialNumber();
PrefUtil.setStringPref(HomeSettingActivity.this, GlobalConstant.PREF_SIM_SERIAL, simSerialNumber);
} else {
ToastUtil.showDialog(this, "必须统一打开权限才可以");
}
}
}