这里我的topActivity扩展了BaseActivity
activity_top.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="schemas.android.com/apk/res/android";
android:layout_width="match_parent"
android:layout_height="match_parent" android:orientation="vertical">
<View android:id="@+id/activity_top_group_area1"
android:layout_width="wrap_content"
android:layout_height="match_parent"/>
</LinearLayout>
TopActivity.java
public class TopActivity extends BaseActivity {
@BindView(R.id.activity_top_group_area1)
View mViewClickArea1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_top);
ButterKnife.bind(this);
# do something... but mViewClickArea1 is null here.
}
}
BaseActivity扩展了AppCompactActivity,我在其中集中了权限工作
public class BaseActivity extends AppCompactActivity {
# do some Run time Permission work that is ...
private int requestCodeM;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public void onRequestPermissionsResult(final int requestCode, @NonNull final String[] permissions, @NonNull int[] grantResults) {
boolean isPermissionGranted = false;
if (requestCodeM == requestCode) {
if (grantResults.length > 0) {
/*--------------------------------------------------*/
for (int i = 0; i < grantResults.length; i++) {
if(grantResults[i] == PackageManager.PERMISSION_GRANTED){
isPermissionGranted=true;
}else {
isPermissionGranted=false;
break;
}
}
permissiongrantedResult(requestCode,isPermissionGranted);
}
}
}
public void addRequestPermission(String[] permissionRequest, int requestCode) {
this.requestCodeM = requestCode;
ActivityCompat.requestPermissions(ActivityWithRequestPermission.this, permissionRequest, requestCode);
}
public abstract void permissiongrantedResult(int requestCode, boolean grantStatus);`enter code here`
}
请看这个。
答案 0 :(得分:0)
在您的代码中尝试此操作。
将xml代码更改为此
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<View
android:id="@+id/activity_top_group_area1"
android:layout_width="wrap_content"
android:layout_height="match_parent"/>
</LinearLayout>
检查project gradle
dependencies {
classpath 'com.android.tools.build:gradle:2.3.3'
// add this in your code
classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
}
检查app gradle
apply plugin: 'com.android.application'
apply plugin: 'android-apt' // add this
...
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.jakewharton:butterknife:8.6.0'
// add this
apt 'com.jakewharton:butterknife-compiler:8.6.0
}