Permission ในระบบ android แบ่งได้เป็น 2 ชนิดคือ
- Normal Permission กรณีนี้ไม่จำเป็นต้องขอ Runtime Permission
- Dangerous Permission จำเป็นต้องขอ Runtime Permission
แต่อย่างไรก็ตาม ต้องขอ Permission ในไฟล์ AndroidManifest.xml ด้วย
build.gradle (Module: app)
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apply plugin: 'com.android.application' android { compileSdkVersion 26 defaultConfig { applicationId "com.phaisarn.myapplication" minSdkVersion 21 targetSdkVersion 26 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation 'com.android.support:appcompat-v7:26.1.0' implementation 'com.android.support.constraint:constraint-layout:1.1.3' implementation 'com.android.support:design:26.1.0' testImplementation 'junit:junit:4.12' androidTestImplementation 'com.android.support.test:runner:1.0.2' androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2' implementation 'com.github.armcha:SimplePermissions:1.0.0' } |
AndroidManifest.xml
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<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.phaisarn.myapplication"> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.CAMERA" /> <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" android:label="@string/app_name" android:theme="@style/AppTheme.NoActionBar"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest> |
บรรทัดที่ 5-6 : ขอ Permission
content_main.xml
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<?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" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:context=".MainActivity" tools:showIn="@layout/activity_main"> <Button android:id="@+id/button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_marginTop="45dp" android:text="Request Permission" /> <TextView android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignStart="@+id/button" android:layout_below="@+id/button" android:layout_marginTop="52dp" android:text="" /> </RelativeLayout> |
MainActivity.java
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package com.phaisarn.myapplication; import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.Snackbar; import android.support.v7.widget.Toolbar; import android.view.View; import android.view.Menu; import android.view.MenuItem; import android.content.Intent; import android.os.Build; import android.provider.MediaStore; import android.widget.Toast; import com.luseen.simplepermission.permissions.Permission; import com.luseen.simplepermission.permissions.PermissionActivity; import com.luseen.simplepermission.permissions.SinglePermissionCallback; public class MainActivity extends PermissionActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) .setAction("Action", null).show(); } }); findViewById(R.id.button).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (Build.VERSION.SDK_INT >= 23) { //หรือ >= Build.VERSION_CODES.M requestPermission(Permission.CAMERA, new SinglePermissionCallback() { @Override public void onPermissionResult(boolean permissionGranted, boolean isPermissionDeniedForever) { if (permissionGranted) { imageCapture(); } else { Toast.makeText(getBaseContext(), "Please grant permissions", Toast.LENGTH_SHORT).show(); } } }); } else { imageCapture(); } } }); } private void imageCapture() { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); //... startActivityForResult(intent, 999); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } } |
บรรทัดที่ 20 : กำหนดให้สืบทอดจาก PermissionActivity
(ปกติสืบทอดจาก AppCompatActivity
)
ถ้าเป็น Fragment ให้สืบทอดจาก PermissionFragment
(ปกติสืบทอดจาก Fragment
)
บรรทัดที่ 42 : ขอ Permission เดียว ใช้ SinglePermissionCallback()
แต่ถ้าต้องการขอ Runtime Permission พร้อมกันหลายอันทำแบบนี้
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Permission[] permissions = {Permission.CALL_PHONE, Permission.SEND_SMS, Permission.FINE_LOCATION}; requestPermission(permissions, new MultiplePermissionCallback() { @Override public void onPermissionGranted(boolean allpermissionGranted, List<Permission> grantPermissions) { } @Override public void onPermissionDenied(List<Permission> deniedPermissions, List<Permission> foreverDeniedPermissions) { } }); |
แต่ยังมี Error อยู่ เอาไว้ดูเป็นแนวทางเฉยๆ