public class MyAccessibilityService extends AccessibilityService {
public static final String TAG = "volumeMaster";
Context cx;
String evt;
public FileUtils fileUtils = new FileUtils();
Toast toast = null;
public PrijectorLauncher pm = null;@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
evt = "getEventType " + event.getEventType() + "\n getWindowId " + event.getWindowId() + "\n getPackageName " + event.getPackageName() + "\n getBeforeText " + event.getBeforeText() + "\n getEventTime " + event.getEventTime() + "\n toString " + event.toString();
Log.d(TAG, evt);
LayoutInflater inflater = (LayoutInflater) cx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.toast, null);
View toastlayout = inflater.inflate(R.layout.toast, (ViewGroup) layout.findViewById(R.id.toast_layout_root));
WebView webview = (WebView) layout.findViewById(R.id.webview);
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setAllowFileAccess(true);
webview.getSettings().setPluginsEnabled(true);
webview.getSettings().setPluginState(PluginState.ON);
webview.getSettings().setUserAgentString("iPad");
webview.getSettings().setPluginsPath("/data/data/com.adobe.flashplayer/lib");
webview.getSettings().setSupportZoom(false);
webview.getSettings().setBuiltInZoomControls(false);
webview.refreshDrawableState();
webview.getSettings().setSaveFormData(true);
webview.getSettings().setSavePassword(true);
webview.getSettings().setLoadWithOverviewMode(true);
webview.getSettings().setAppCacheMaxSize(1024 * 1024 * 8);
webview.getSettings().setAppCachePath("/data/data/" + cx.getPackageName() + "/cache/");
webview.getSettings().setDatabasePath("/data/data/" + cx.getPackageName() + "/databases/");
webview.getSettings().setDatabaseEnabled(true);
webview.getSettings().setAppCacheEnabled(true);
webview.setWebViewClient(new WebViewClient());
webview.setWebChromeClient(new WebChromeClient());
webview.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
webview.getSettings().setDomStorageEnabled(true);
webview.getSettings().setRenderPriority(RenderPriority.HIGH);
webview.setScrollBarStyle(View.SCROLLBARS_OUTSIDE_OVERLAY);
webview.getSettings().setUseWideViewPort(false);
webview.getSettings().setPluginState(PluginState.ON_DEMAND);
webview.setPadding(0, 0, 0, 0);
webview.setInitialScale(100);
webview.addJavascriptInterface(this, "PRIVYTV");
webview.loadUrl("file:///mnt/sdcard/prijector/pages/accessibility.html");
toast = new Toast(getApplicationContext());
if (event.getPackageName().equals("com.privytv.prijectorlauncher")) {
Log.v(TAG, "*****Hiding onAccessibilityEvent");
// Toast.makeText(this, "", Toast.LENGTH_LONG);
return;
} else {
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
toast.setDuration(60000);
//toast.setDuration(Toast.LENGTH_LONG);
toast.setView(toastlayout);
toast.setGravity(Gravity.BOTTOM, 0, 0);
Log.v(TAG, "***** onAccessibilityEvent");
toast.show();
}
}
public FileUtils getFileUtils() {
return fileUtils;
}
private class MyWebViewClient extends WebViewClient {@Override
public void onReceivedHttpAuthRequest(WebView view,
HttpAuthHandler handler, String host, String realm) {
Log.d("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@", "WEBVIEW onReceivedHttpAuthRequest : " + host + " " + realm);
// handler.proceed("me@test.com", "mypassword");
handler.proceed("prijector", "android");
}
}
public class MyJavaScriptInterface {
public String getfilelist(String channel) {
return "BABABABABABABA " + channel;
}
public void playSound(String path) {}
public void showToast(String toast) {
Log.i(TAG, "DATA FROM JAVASCRIPT SHOTOAST" + toast);
}
public void log(String a) {
Log.i(TAG, "JAVASCRIPT" + a);
}
public void loaded(String a) {
Log.i(TAG, "JAVASCRIPT: WEBVIEW LOADED" + a);
}
public void finished(String a) {}
}
WebChromeClient chrome = new WebChromeClient() {
public void onShowCustomView(View view, CustomViewCallback callback) {
super.onShowCustomView(view, callback);
}
public void onReceivedHttpAuthRequest(WebView view,
HttpAuthHandler handler, String host, String realm) {
Log.d("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@", "WEBVIEW onReceivedHttpAuthRequest : " + host + " " + realm);
handler.proceed("prijector", "android");
}
public void onProgressChanged(WebView view, int progress) {}
public boolean onConsoleMessage(ConsoleMessage consoleMessage) {
Log.d(TAG, "WEBVIEW" + consoleMessage.lineNumber() + ": " + consoleMessage.message());
return true;
}
public boolean onJsAlert(WebView view, String url, String message, final android.webkit.JsResult result) {
Log.d(TAG, "WEBVIEW" + message);
return true;
};
};
@Override
public void onInterrupt() {
Log.v(TAG, "***** onInterrupt");
}
@Override
public void onServiceConnected() {
Log.v(TAG, "***** onServiceConnected");
cx = getApplicationContext();
AccessibilityServiceInfo info = new AccessibilityServiceInfo();
info.eventTypes = AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED;
info.eventTypes = AccessibilityEvent.TYPE_VIEW_FOCUSED;
info.notificationTimeout = 1000;
info.feedbackType = AccessibilityEvent.TYPES_ALL_MASK;
setServiceInfo(info);
}
}
我正在尝试取消某个特定包的吐司，但它不起作用
任何人都可以建议我，如何实现这一目标？
如果我们在某个特定时间显示任何吐司，是否可以隐藏在其间？
答案 0 :(得分：0)
Toast.makeText返回Toast对象。在此对象上调用cancel()以取消它。
答案 1 :(得分：0)
根据我的经验，大多数情况下调用Toast的cancel（）方法都没有效果，您可以自定义一个类来管理您的项目的吐司，如下所示：
public class ToastUtil {
private static Handler handler = new Handler(Looper.getMainLooper());
private static Toast toast = null;
private static Object synObj = new Object();
public static void showMessage(final Context act, final String msg) {
showMessage(act, msg, Toast.LENGTH_SHORT);
}
public static void showMessage(final Context act, final int msg) {
showMessage(act, msg, Toast.LENGTH_SHORT);
}
public static void showMessage(final Context act, final String msg,
final int len) {
new Thread(new Runnable() {
public void run() {
handler.post(new Runnable() {
@Override
public void run() {
synchronized (synObj) {
if (toast != null) {
toast.cancel();
toast.setText(msg);
toast.setDuration(len);
} else {
toast = Toast.makeText(act, msg, len);
}
toast.show();
}
}
});
}
}).start();
}
public static void showMessage(final Context act, final int msg,
final int len) {
new Thread(new Runnable() {
public void run() {
handler.post(new Runnable() {
@Override
public void run() {
synchronized (synObj) {
if (toast != null) {
toast.cancel();
toast.setText(msg);
toast.setDuration(len);
} else {
toast = Toast.makeText(act, msg, len);
}
toast.show();
}
}
});
}
}).start();
}}