判断软键盘显示与隐藏

效果图：

效果图

代码:

public class MainActivity extends AppCompatActivity implements ViewTreeObserver.OnGlobalLayoutListener {

    private ImageView logoImg;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        logoImg = findViewById(R.id.logo_img);
    }

    @Override
    protected void onResume() {
        super.onResume();
       getWindow().getDecorView().getViewTreeObserver().addOnGlobalLayoutListener(this);
    }

    @Override
    protected void onPause() {
        super.onPause();
        getWindow().getDecorView().getViewTreeObserver().removeGlobalOnLayoutListener(this);
    }

    @Override
    public void onGlobalLayout() {
        int screenHeight = logoImg.getRootView().getHeight();//获取根布局高
        Rect keyRect = new Rect();
        logoImg.getWindowVisibleDisplayFrame(keyRect);//获取当前窗口可视区域大小
        int keyShowHeight = screenHeight - keyRect.bottom;
        if (keyShowHeight > 0) {
            Toast.makeText(this, "键盘显示", Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(this, "键盘隐藏", Toast.LENGTH_SHORT).show();
        }
    }
}

布局文件就一个图片和一个EditText，这里就不贴出了，关键是代码

int screenHeight = logoImg.getRootView().getHeight();//获取根布局高
Rect keyRect = new Rect();
logoImg.getWindowVisibleDisplayFrame(keyRect);//获取当前窗口可视区域大小
int keyShowHeight = screenHeight - keyRect.bottom;