进入InputMethodManager类的doStartInput方法

    void doStartInput(InputConnection ic, EditorInfo attribute, boolean restarting) {        if (!restarting) {            doFinishInput();        }        mInputStarted = true;        mStartedInputConnection = ic;        mInputEditorInfo = attribute;        initialize();        if (DEBUG) Log.v(TAG,"InputMethodService class" +  "CALL: onStartInput , mWindowVisible=" + mWindowVisible);        onStartInput(attribute, restarting);        if (mWindowVisible) {            if (mShowInputRequested) {                if (DEBUG) Log.v(TAG,"InputMethodService class" +  "CALL: onStartInputView");                mInputViewStarted = true;                onStartInputView(mInputEditorInfo, restarting);                startExtractingText(true);            } else if (mCandidatesVisibility == View.VISIBLE) {                if (DEBUG) Log.v(TAG,"InputMethodService class" +  "CALL: onStartCandidatesView");                mCandidatesViewStarted = true;                onStartCandidatesView(mInputEditorInfo, restarting);            }        }    }

从上面来看mWindowVisible这个变量就是开关，那么我们来看下，这个变量是什么时候true的呢？即上面时候才让它show的呢？

找到两处赋值的地方，如下：

   void showWindowInner(boolean showInput) {        boolean doShowInput = false;        boolean wasVisible = mWindowVisible;        mWindowVisible = true;

    public void hideWindow() {        finishViews();        mImm.setImeWindowStatus(mToken, 0, mBackDisposition);        if (mWindowVisible) {            mWindow.hide();            mWindowVisible = false;            onWindowHidden();            mWindowWasVisible = false;        }    }

我们看下showWindowInner在什么地方被调用

    public void showWindow(boolean showInput) {        if (DEBUG) Log.v(TAG,"InputMethodService class" +  "Showing window: showInput=" + showInput                + " mShowInputRequested=" + mShowInputRequested                + " mWindowAdded=" + mWindowAdded                + " mWindowCreated=" + mWindowCreated                + " mWindowVisible=" + mWindowVisible                + " mInputStarted=" + mInputStarted);                if (mInShowWindow) {            Log.w(TAG,"InputMethodService class" +  "Re-entrance in to showWindow");            return;        }                try {            mWindowWasVisible = mWindowVisible;            mInShowWindow = true;            showWindowInner(showInput);        } finally {            mWindowWasVisible = true;            mInShowWindow = false;        }    }

        public void showSoftInput(int flags, ResultReceiver resultReceiver) {            if (DEBUG) Log.v(TAG,"InputMethodService class" +  "showSoftInput()");            boolean wasVis = isInputViewShown();            mShowInputFlags = 0;            if (onShowInputRequested(flags, false)) {            if (DEBUG) Log.v(TAG,"InputMethodService class" +  "showWindow(true)");                showWindow(true);            }

从上面来看，它的确是传了个true，showWindow(true);那么什么时候才周到这里呢？看了下日志,如下：

01-01 09:22:22.520 V/PateoInputMethod( 1486): InputMethodService classshowSoftInput()
01-01 09:22:22.520 V/PateoInputMethod( 1486): InputMethodService classshowWindow(true)

可以看出是在show的时候进入该方法的，那就对了，好吧，有关怎么show的流程，可以看我写的另一个帖子：

android 点击输入框调出输入法流程分析

http://blog.csdn.net/jianguo_liao19840726/article/details/24413043

android 输入法界面显示的开关

android 点击输入框调出输入法流程分析

http://blog.csdn.net/jianguo_liao19840726/article/details/24413043

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