android 获取软键盘高度
时间: 2023-10-18 09:06:40 浏览: 109
在 Android 中获取软键盘高度可以通过以下步骤实现:
1. 创建一个全局的 ViewTreeObserver.OnGlobalLayoutListener 监听器。该监听器会在布局变化时调用。
```
ViewTreeObserver.OnGlobalLayoutListener keyboardLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
// TODO: 获取软键盘高度
}
};
```
2. 注册该监听器到当前 Activity 的根布局上。
```
View rootView = findViewById(android.R.id.content);
rootView.getViewTreeObserver().addOnGlobalLayoutListener(keyboardLayoutListener);
```
3. 在监听器的回调方法中获取软键盘高度。
```
Rect rect = new Rect();
rootView.getWindowVisibleDisplayFrame(rect);
int screenHeight = rootView.getHeight();
int keyboardHeight = screenHeight - rect.bottom;
```
完整的代码示例:
```
View rootView = findViewById(android.R.id.content);
rootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
Rect rect = new Rect();
rootView.getWindowVisibleDisplayFrame(rect);
int screenHeight = rootView.getHeight();
int keyboardHeight = screenHeight - rect.bottom;
Log.d("Keyboard height", String.valueOf(keyboardHeight));
}
});
```
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