Android Framework系列之IMF（三）
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我们知道当一个编辑框获得焦点的时候，将会create一个新的IME客户端，那么IMF框架是怎样处理这个事件的呢？
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首先调用EditText的构造函数EditTex->TextView->setText()???????????
?那么到了IME部分的流程又是如何的呢？
首先收到configure change的event调用onConfigurationChanged->inputmethodservice.onConfigurationChanged(conf)
@Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); boolean visible = mWindowVisible; int showFlags = mShowInputFlags; boolean showingInput = mShowInputRequested; CompletionInfo[] completions = mCurCompletions; initViews(); mInputViewStarted = false; mCandidatesViewStarted = false; if (mInputStarted) { doStartInput(getCurrentInputConnection(), getCurrentInputEditorInfo(), true); //调用startinput，创建IME的input } if (visible) { if (showingInput) { // If we were last showing the soft keyboard, try to do so again. if (onShowInputRequested(showFlags, true)) { showWindow(true); if (completions != null) { mCurCompletions = completions; onDisplayCompletions(completions); } } else { hideWindow(); } } else if (mCandidatesVisibility == View.VISIBLE) { // If the candidates are currently visible, make sure the // window is shown for them. showWindow(false); } else { // Otherwise hide the window. hideWindow(); } } }?doStartInput->initialize->onInitializeInterface->onStartInput->onStartInputView.
onStartInputView中会handle各种IME的event并进一步调用IME自身的onCreate函数，做进一步的初始化以及receiver的rigister。
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