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所以，我在android工作室有這個短信應用程序。第一次運行時，它彈出：編輯窗口詢問權限，併發送短信。但後來它從不要求權限和SMS劑量發送。誰能幫我？短信和工作室權限問題
這是我的主要課程。
package com.example.xbhatti.sms4;
import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.app.Activity;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.telephony.SmsManager;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
private static final int MY_PERMISSIONS_REQUEST_SEND_SMS =0 ;
Button sendBtn;
EditText txtphoneNo;
EditText txtMessage;
String phoneNo;
String message;
@Override
public void onRequestPermissionsResult(int requestCode,String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_SEND_SMS: {
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(phoneNo, null, message, null, null);
Toast.makeText(getApplicationContext(), "SMS sent.",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(),
"SMS faild, please try again.", Toast.LENGTH_LONG).show();
return;
}
}
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
sendBtn = (Button) findViewById(R.id.btnSendSMS);
txtphoneNo = (EditText) findViewById(R.id.editText);
txtMessage = (EditText) findViewById(R.id.editText2);
sendBtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
sendSMSMessage();
}
});
}
protected void sendSMSMessage() {
phoneNo = txtphoneNo.getText().toString();
message = txtMessage.getText().toString();
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.SEND_SMS)
!= PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.SEND_SMS)) {
} else {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.SEND_SMS},
MY_PERMISSIONS_REQUEST_SEND_SMS);
}
}
}
}
，這是我的xml文件
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.xbhatti.sms4.MainActivity">
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Sending SMS Example"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:textSize="30dp" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tutorials point "
android:textColor="#ff87ff09"
android:textSize="30dp"
android:layout_below="@+id/textView1"
android:layout_alignRight="@+id/imageButton"
android:layout_alignEnd="@+id/imageButton" />
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageButton"
android:layout_below="@+id/textView2"
android:layout_centerHorizontal="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/editText"
android:hint="Enter Phone Number"
android:phoneNumber="true"
android:textColorHint="@color/abc_primary_text_material_dark"
android:layout_below="@+id/imageButton"
android:layout_centerHorizontal="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/editText2"
android:layout_below="@+id/editText"
android:layout_alignLeft="@+id/editText"
android:layout_alignStart="@+id/editText"
android:textColorHint="@color/abc_primary_text_material_dark"
android:layout_alignRight="@+id/imageButton"
android:layout_alignEnd="@+id/imageButton"
android:hint="Enter SMS" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Send Sms"
android:id="@+id/btnSendSMS"
android:layout_below="@+id/editText2"
android:layout_centerHorizontal="true"
android:layout_marginTop="48dp" />
</RelativeLayout>
，這是我mainfest xml文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.xbhatti.sms4">
<uses-permission android:name="android.permission.SEND_SMS" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
我在方法onRequest（）中有一個else語句。我應該在哪裏放置這段代碼？ – SRB
如果你看到我的代碼上面，你可以看到我已經有這個代碼 – SRB
我已經更新了我的答案，你可以檢查它的代碼是否有效。如果它確實起作用，那麼您還需要在下面的SDK中檢查它。 – Mabz