I am trying to implement Butterknife into my android studio project.
However when I do so I get an error on @InjectView
"cannot resolve symbol InjectView".
Have I not implemented Butterknife sucsessfully?
Activity code:
package com.example.rodf.testapp;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends ActionBarActivity {
@InjectView(R.id.tvHelloWorld) TextView tv1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
layout:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<TextView
android:id="@+id/tvHelloWorld"
android:text="@string/hello_world" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
gradle file:
apply plugin: 'com.android.application'
android {
compileSdkVersion 21
buildToolsVersion "21.1.2"
defaultConfig {
applicationId "com.example.rodf.testapp"
minSdkVersion 15
targetSdkVersion 21
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.3'
//adding the butter knife library
compile 'com.jakewharton:butterknife:6.0.0'
}
We decided to update our Android Getting Started Guide Sample App because ButterKnife has been deprecated. As new developers onboard to the Android Communications SDK, it's important for our sample apps to be using the latest Android practices that others would use in their own projects.
It's a design pattern in Android that allows writing codes for low coupling and also makes it possible to change them any time.
Note that in the latest versions of the ButterKnife library, the @InjectView()
annotation is no longer used.
In stead @Bind(R.id.tvHelloWorld)
and ButterKnife.bind(this);
are used.
Reference: http://jakewharton.github.io/butterknife/
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