我有一个WebView应用程序,并希望添加启动屏幕以显示加载页面或设置的时间量。我尝试了一些其他的解决方案,但找不到一个工作。如果需要知道,我的飞溅图像是splash.png,位于可绘制文件夹中。适用于Android Webview的初始屏幕
这里是我的MainActivity.java
public class MainActivity extends Activity {
private GoogleApiClient client;
@Override
public void onBackPressed()
{
WebView webView = (WebView) findViewById(R.id.webView);
if(webView.canGoBack()){
webView.goBack();
}
if (doubleBackToExitPressedOnce) {
super.onBackPressed();
return;
}
this.doubleBackToExitPressedOnce = true;
Toast.makeText(this, "Tap Twice To Exit", Toast.LENGTH_SHORT).show();
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
doubleBackToExitPressedOnce=false;
}
}, 2000);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView view = (WebView) this.findViewById(R.id.webView);
view.getSettings().setJavaScriptEnabled(true);
view.setWebViewClient(new MyBrowser());
client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
if(isNetworkStatusAvialable (getApplicationContext())) {
view.loadUrl("file:///android_asset/index.html");
} else {
view.loadUrl("file:///android_asset/error.html");
}
}
public static boolean isNetworkStatusAvialable (Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager != null)
{
NetworkInfo netInfos = connectivityManager.getActiveNetworkInfo();
if(netInfos != null)
if(netInfos.isConnected())
return true;
}
return false;
}
@Override
public void onStart() {
super.onStart();
client.connect();
Action viewAction = Action.newAction(
Action.TYPE_VIEW,
"MLINKS",
Uri.parse("http://host/path"),
Uri.parse("android-app://PACKAGE-NAME/http/host/path")
);
AppIndex.AppIndexApi.start(client, viewAction);
}
@Override
public void onStop() {
super.onStop();
Action viewAction = Action.newAction(
Action.TYPE_VIEW,
"MLINKS",
Uri.parse("http://host/path"),
Uri.parse("android-app://PACKAGE-NAME/http/host/path")
);
AppIndex.AppIndexApi.end(client, viewAction);
client.disconnect();
}
private class MyBrowser extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
boolean doubleBackToExitPressedOnce = false;
}
感谢您的帮助!
你想做什么?你的问题不太清楚 –
@BasilBattikhi我想显示一个启动画面而不是webview,直到页面加载完成。 –