我在程序的不同部分有很多WebView,但这些WebViews彼此没有区别,这就是我想用必要的设置创建自定义WebView的原因。目前,WebView没有显示,但没有错误。难道我做错了什么?
public class MyWebView extends WebView {
MyWebView mMyWebView;
public MyWebView(Context context) {
super(context);
}
public MyWebView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MyWebView initView(Context context){
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
MyWebView view = (MyWebView) inflater.inflate(R.layout.custom_webview, this);
view.getSettings().setJavaScriptEnabled(true) ;
view.getSettings().setUseWideViewPort(true);
view.getSettings().setLoadWithOverviewMode(true);
view.getSettings().setDomStorageEnabled(true);
return view;
}
}
custom_webview.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<WebView
android:id="@+id/custom_webview"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
MainActivity:
public class MainActivity extends AppCompatActivity {
MyWebView mWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = new MyWebView(MainActivity.this);
mWebView = mWebView.initView(MainActivity.this);
mWebView = (MyWebView) findViewById(R.id.web_view);
}
@Override
protected void onResume() {
mWebView.loadUrl("https://www.google.com/");
}
}
main_activity.xml:
<com.mypack.webview.MyWebView
android:id="@+id/web_view"
android:layout_below="@+id/start_URL"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
答案 0 :(得分:0)
您应该重写“MyWebView”类。您的方法“initView”每次都会生成一个新的MyWebView对象,但它永远不会连接到您的MainActivity。这可能是你没有看到它的原因。
也许尝试类似(未经测试的)
public class MyWebView extends WebView {
public MyWebView(Context context) {
super(context);
initView(context);
}
public MyWebView(Context context, AttributeSet attrs) {
super(context, attrs);
initView(context);
}
private void initView(Context context){
// i am not sure with these inflater lines
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// you should not use a new instance of MyWebView here
// MyWebView view = (MyWebView) inflater.inflate(R.layout.custom_webview, this);
this.getSettings().setJavaScriptEnabled(true) ;
this.getSettings().setUseWideViewPort(true);
this.getSettings().setLoadWithOverviewMode(true);
this.getSettings().setDomStorageEnabled(true);
}
}
并用
调用它public class MainActivity extends AppCompatActivity {
MyWebView mWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = (MyWebView) findViewById(R.id.web_view);
}
@Override
protected void onResume() {
mWebView.loadUrl("https://www.google.com/");
}
}