Lint Report: 12 warnings
Issue Types

Overview

Correctness
1warning OldTargetApi: Target SDK attribute is not targeting latest version
1warning UnusedAttribute: Attribute unused on older versions
2warning GradleDynamicVersion: Gradle Dynamic Version
Security
5warning HardwareIds: Hardware Id Usage
Usability
1warning GoogleAppIndexingWarning: Missing support for Firebase App Indexing
Internationalization
1warning HardcodedText: Hardcoded text
Internationalization:Bidirectional Text
1warning RtlEnabled: Using RTL attributes without enabling RTL support
Disabled Checks (21)

Target SDK attribute is not targeting latest version

../../build.gradle:9: Not targeting the latest versions of Android; compatibility modes apply. Consider testing and updating this version. Consult the android.os.Build.VERSION_CODES javadoc for details.
  6     defaultConfig {
  7         applicationId "com.ais.forcedpathtest"
  8         minSdkVersion 16
  9         targetSdkVersion 16                                                                         
 10         versionCode 1
 11         versionName "1.0"
 12         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
OldTargetApi Correctness Warning Priority 6/10

Attribute unused on older versions

../../src/main/res/layout/activity_main.xml:19: Attribute elevation is only used in API level 21 and higher (current min is 16)
 16         android:layout_marginLeft="8dp"
 17         android:layout_marginRight="8dp"
 18         android:layout_marginTop="8dp"
 19         android:elevation="1dp"                                                                     
 20         android:scrollbars="vertical"
 21         app:layout_constraintBottom_toBottomOf="parent"
 22         app:layout_constraintHorizontal_bias="0.0"
UnusedAttribute Correctness Warning Priority 6/10

Gradle Dynamic Version

../../build.gradle:27: Avoid using + in version numbers; can lead to unpredictable and unrepeatable builds (com.android.support:appcompat-v7:26.+)
 24     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
 25         exclude group: 'com.android.support', module: 'support-annotations'
 26     })
 27     compile 'com.android.support:appcompat-v7:26.+'                                                 
 28     compile 'com.android.support:design:26.+'
 29     compile 'com.android.support.constraint:constraint-layout:1.0.2'
 30     testCompile 'junit:junit:4.12'
../../build.gradle:28: Avoid using + in version numbers; can lead to unpredictable and unrepeatable builds (com.android.support:design:26.+)
 25         exclude group: 'com.android.support', module: 'support-annotations'
 26     })
 27     compile 'com.android.support:appcompat-v7:26.+'
 28     compile 'com.android.support:design:26.+'                                                       
 29     compile 'com.android.support.constraint:constraint-layout:1.0.2'
 30     testCompile 'junit:junit:4.12'
 31 }
GradleDynamicVersion Correctness Warning Priority 4/10

Hardware Id Usage

../../src/main/java/com/ais/forcedpathtest/MainActivity.java:80: Using getDeviceId to get device identifiers is not recommended.
  77 
  78   TelephonyManager tele = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
  79 
  80   mTextView.append("\nIMEI/MEID: " + tele.getDeviceId());                                 
  81   mTextView.append("\nPhone number: " + tele.getLine1Number());
  82   mTextView.append("\nSubscriber ID: " + tele.getSubscriberId());
  83   mTextView.append("\nSim Serial: " + tele.getSimSerialNumber());
../../src/main/java/com/ais/forcedpathtest/MainActivity.java:81: Using getLine1Number to get device identifiers is not recommended.
  78   TelephonyManager tele = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
  79 
  80   mTextView.append("\nIMEI/MEID: " + tele.getDeviceId());
  81   mTextView.append("\nPhone number: " + tele.getLine1Number());                           
  82   mTextView.append("\nSubscriber ID: " + tele.getSubscriberId());
  83   mTextView.append("\nSim Serial: " + tele.getSimSerialNumber());
../../src/main/java/com/ais/forcedpathtest/MainActivity.java:82: Using getSubscriberId to get device identifiers is not recommended.
  79 
  80             mTextView.append("\nIMEI/MEID: " + tele.getDeviceId());
  81             mTextView.append("\nPhone number: " + tele.getLine1Number());
  82             mTextView.append("\nSubscriber ID: " + tele.getSubscriberId());                         
  83             mTextView.append("\nSim Serial: " + tele.getSimSerialNumber());
  84 
  85             mTextView.append("\nNetwork: " + tele.getNetworkOperatorName());
../../src/main/java/com/ais/forcedpathtest/MainActivity.java:83: Using getSimSerialNumber to get device identifiers is not recommended.
  80             mTextView.append("\nIMEI/MEID: " + tele.getDeviceId());
  81             mTextView.append("\nPhone number: " + tele.getLine1Number());
  82             mTextView.append("\nSubscriber ID: " + tele.getSubscriberId());
  83             mTextView.append("\nSim Serial: " + tele.getSimSerialNumber());                         
  84 
  85             mTextView.append("\nNetwork: " + tele.getNetworkOperatorName());
  86             mTextView.append("\nNetwork Country: " + tele.getNetworkCountryIso());
../../src/main/java/com/ais/forcedpathtest/MainActivity.java:108: Using getLine1Number to get device identifiers is not recommended.
 105   mTextView.append("\nConnecting to wikipedia, to show exposing of personal info over http.\n");
 106 
 107   try {
 108       HttpURLConnection con = (HttpURLConnection) new URL("https://en.wikipedia.org/w/index.php?search=" + tele.getLine1Number()).openConnection();
 109       con.connect();
 110       mTextView.append("Http response: " + con.getResponseMessage() + "\n");
 111   } catch (Exception e) {
HardwareIds Security Warning Priority 6/10

Missing support for Firebase App Indexing

../../src/main/AndroidManifest.xml:8: App is not indexable by Google Search; consider adding at least one Activity with an ACTION-VIEW intent filter. See issue explanation for more details.
  5     <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
  6     <uses-permission android:name="android.permission.INTERNET"/>
  7 
  8     <application                                                                                    
  9         android:allowBackup="true"
 10         android:icon="@mipmap/ic_launcher"
 11         android:label="@string/app_name"
GoogleAppIndexingWarning Usability Warning Priority 5/10

Hardcoded text

../../src/main/res/layout/activity_main.xml:48: [I18N] Hardcoded string "Enter Yes", should use @string resource
 45         android:layout_marginRight="8dp"
 46         android:layout_marginTop="8dp"
 47         android:ems="10"
 48         android:hint="Enter Yes"                                                                    
 49         android:inputType="textPersonName"
 50         app:layout_constraintHorizontal_bias="0.505"
 51         app:layout_constraintLeft_toLeftOf="parent"
HardcodedText Internationalization Warning Priority 5/10

Using RTL attributes without enabling RTL support

../../src/main/AndroidManifest.xml:13: You must set android:targetSdkVersion to at least 17 when enabling RTL support (is 16)
 10         android:icon="@mipmap/ic_launcher"
 11         android:label="@string/app_name"
 12         android:roundIcon="@mipmap/ic_launcher_round"
 13         android:supportsRtl="true"                                                                  
 14         android:theme="@style/AppTheme">
 15         <activity android:name=".MainActivity">
 16             <intent-filter>
RtlEnabled Bidirectional Text Internationalization Warning Priority 3/10

Disabled Checks

One or more issues were not run by lint, either because the check is not enabled by default, or because it was disabled with a command line flag or via one or more lint.xml configuration files in the project directories.

Suppressing Warnings and Errors

Lint errors can be suppressed in a variety of ways:

1. With a @SuppressLint annotation in the Java code
2. With a tools:ignore attribute in the XML file
3. With a //noinspection comment in the source code
4. With ignore flags specified in the build.gradle file, as explained below
5. With a lint.xml configuration file in the project
6. With a lint.xml configuration file passed to lint via the --config flag
7. With the --ignore flag passed to lint.

To suppress a lint warning with an annotation, add a @SuppressLint("id") annotation on the class, method or variable declaration closest to the warning instance you want to disable. The id can be one or more issue id's, such as "UnusedResources" or {"UnusedResources","UnusedIds"}, or it can be "all" to suppress all lint warnings in the given scope.

To suppress a lint warning with a comment, add a //noinspection id comment on the line before the statement with the error.

To suppress a lint warning in an XML file, add a tools:ignore="id" attribute on the element containing the error, or one of its surrounding elements. You also need to define the namespace for the tools prefix on the root element in your document, next to the xmlns:android declaration:
xmlns:tools="http://schemas.android.com/tools"

To suppress a lint warning in a build.gradle file, add a section like this:

android {
    lintOptions {
        disable 'TypographyFractions','TypographyQuotes'
    }
}

Here we specify a comma separated list of issue id's after the disable command. You can also use warning or error instead of disable to change the severity of issues.

To suppress lint warnings with a configuration XML file, create a file named lint.xml and place it at the root directory of the module in which it applies.

The format of the lint.xml file is something like the following:

<?xml version="1.0" encoding="UTF-8"?>
<lint>
    <!-- Disable this given check in this project -->
    <issue id="IconMissingDensityFolder" severity="ignore" />

    <!-- Ignore the ObsoleteLayoutParam issue in the given files -->
    <issue id="ObsoleteLayoutParam">
        <ignore path="res/layout/activation.xml" />
        <ignore path="res/layout-xlarge/activation.xml" />
    </issue>

    <!-- Ignore the UselessLeaf issue in the given file -->
    <issue id="UselessLeaf">
        <ignore path="res/layout/main.xml" />
    </issue>

    <!-- Change the severity of hardcoded strings to "error" -->
    <issue id="HardcodedText" severity="error" />
</lint>

To suppress lint checks from the command line, pass the --ignore flag with a comma separated list of ids to be suppressed, such as:
$ lint --ignore UnusedResources,UselessLeaf /my/project/path

For more information, see http://g.co/androidstudio/suppressing-lint-warnings