Android 安卓向下滚动
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android scroll down
提问by d-man
I have text area and and down to that "ok" and "cancel" button. when i click on text area keyboard appear and focus on the text area and buttons get hide behind the keyboard.
我有文本区域，再到“确定”和“取消”按钮。当我点击文本区域键盘出现并专注于文本区域和按钮隐藏在键盘后面。
i want when text area get focus scroll a little bit and also display the bottom buttons while text area id selected.
我希望当文本区域获得焦点时滚动一点，并在选择文本区域 id 时显示底部按钮。
回答by d-man
i fixed it by myself :D following is the code
我自己修好了 :D 以下是代码
i called the following method when textfield gain the focus
当文本字段获得焦点时，我调用了以下方法
private final void focusOnButtons(){
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
ScrollView sv = (ScrollView)findViewById(R.id.scrl);
sv.scrollTo(0, sv.getBottom());
}
},1000);
}
回答by Dan B
You could try wrapping your existing layout in a ScrollView:
https://developer.android.com/reference/android/widget/ScrollView.html
Your layout xml file might look like:
您可以尝试将现有布局包装在 ScrollView 中：
https: //developer.android.com/reference/android/widget/ScrollView.html
您的布局 xml 文件可能如下所示：
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ScrollView01" android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<EditText android:text="@string/hello" android:id="@+id/EditText01"
android:layout_width="wrap_content" android:layout_height="wrap_content">
</EditText>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button android:text="@+id/Button01" android:id="@+id/Button01"
android:layout_width="wrap_content" android:layout_height="wrap_content">
</Button>
<Button android:text="@+id/Button02" android:id="@+id/Button02"
android:layout_width="wrap_content" android:layout_height="wrap_content">
</Button>
</LinearLayout>
</LinearLayout>
</ScrollView>
Comment Response:
You might want to check out this page:
https://developer.android.com/training/keyboard-input/index.html
评论回复：
您可能想查看此页面：https:
//developer.android.com/training/keyboard-input/index.html
I think results you want might be accomplished by moving the buttons outside of the Scrollview and setting android:windowSoftInputMode="adjustResize"on the activity.
我认为您想要的结果可以通过将按钮移到 Scrollview 之外并android:windowSoftInputMode="adjustResize"在活动上进行设置来实现。
回答by Mario Velasco
I would adjust few things from the solution:
我会从解决方案中调整一些事情：
1.- Put smoothScroll instead of hard scroll
1.- 使用 smoothScroll 而不是硬滚动
2.- Decrease the delay from 1000 to 300 (enough)
2.- 将延迟从 1000 减少到 300（足够了）
OnFocusChangeListener onFocus = new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
scrollView.smoothScrollTo(0, scrollView.getBottom());
}
},300);
}
};
