smartwindow

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.SYSTEM_OVERLAY_WINDOW" />

适用android2.x 在应用程序中自定义dialog，复制dialog.java到应用程序中并修改方法
 public void setContentView(int layoutResID) {        mWindow.requestFeature(Window.FEATURE_NO_TITLE);        mWindow.setContentView(layoutResID);    }    public void setContentView(View view) {    mWindow.requestFeature(Window.FEATURE_NO_TITLE);        mWindow.setContentView(view);    }    public void setContentView(View view, ViewGroup.LayoutParams params) {    mWindow.requestFeature(Window.FEATURE_NO_TITLE);    mWindow.setContentView(view, params);    }    public void show(boolean focusable) {        if (mShowing) {            if (mDecor != null) {                mDecor.setVisibility(View.VISIBLE);            }            return;        }        if (!mCreated) {            dispatchOnCreate(null);        }        onStart();        mDecor = mWindow.getDecorView();        WindowManager.LayoutParams l = mWindow.getAttributes();        if ((l.softInputMode                & WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION) == 0) {            WindowManager.LayoutParams nl = new WindowManager.LayoutParams();            nl.copyFrom(l);            nl.softInputMode |=                    WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION;            l = nl;        }        l.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT         | WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;        l.flags = WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN        | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS;        if (!focusable) {        l.flags |= WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL         | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;        }        try {            mWindowManager.addView(mDecor, l);            mShowing = true;            sendShowMessage();        } finally {        }    }    private static final String POLICY_IMPL_CLASS_NAME =        "com.android.internal.policy.impl.Policy";    private static final Object sPolicy;    private static final Class policyClass;    static {        // Pull in the actual implementation of the policy at run-time        try {            policyClass = Class.forName(POLICY_IMPL_CLASS_NAME);            sPolicy = policyClass.newInstance();        } catch (ClassNotFoundException ex) {            throw new RuntimeException(                    POLICY_IMPL_CLASS_NAME + " could not be loaded", ex);        } catch (InstantiationException ex) {            throw new RuntimeException(                    POLICY_IMPL_CLASS_NAME + " could not be instantiated", ex);        } catch (IllegalAccessException ex) {            throw new RuntimeException(                    POLICY_IMPL_CLASS_NAME + " could not be instantiated", ex);        }    }    public SmartWindow(Context context, int theme) {    //由于SmartWindow的生命周期有可能会超出调用它的对象(Activity,Service)    //比如Activity已经finish掉了，但是SmartWindow没有dismiss掉，    //则会导致内存泄漏，因此这里强制使用ApplicationContext        mContext = new ContextThemeWrapper(        context.getApplicationContext(), theme == 0 ? android.R.style.Theme_InputMethod : theme);        mWindowManager = (WindowManager)context.getApplicationContext().getSystemService("window");Window w = null;try {Method m = policyClass.getMethod("makeNewWindow", Context.class);w = (Window)m.invoke(sPolicy, mContext);} catch (IllegalArgumentException e) {Log.e(TAG, e.getMessage()+"");} catch (IllegalAccessException e) {Log.e(TAG, e.getMessage()+"");} catch (InvocationTargetException e) {Log.e(TAG, e.getMessage()+"");} catch (SecurityException e) {Log.e(TAG, e.getMessage()+"");} catch (NoSuchMethodException e) {Log.e(TAG, e.getMessage()+"");}        mWindow = w;        w.setCallback(this);        w.setWindowManager(mWindowManager, null, null);        w.setGravity(Gravity.CENTER);        mUiThread = Thread.currentThread();        mListenersHandler = new ListenersHandler(this);    }
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