一、Android 手动显示和隐藏软键盘
如果输入法在窗口上已经显示，则隐藏，反之则显示
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);
view为接受软键盘输入的视图，SHOW_FORCED表示强制显示
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(view,InputMethodManager.SHOW_FORCED);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0); //强制隐藏键盘
调用隐藏系统默认的输入法
// (WidgetSearchActivity是当前的Activity)
((InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(WidgetSearchActivity.this.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
获取输入法打开的状态
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
boolean isOpen=imm.isActive();//isOpen若返回true，则表示输入法打开
二、Android 键盘弹起和回落事件监听
AndroidMainfest.xml
android:name=".MainActivity"
android:windowSoftInputMode="stateAlwaysHidden|adjustResize">
MainActivity
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.Toast;
/**
* 捕捉界面键盘弹起动作
* 例如 京东金融 登陆界面 在输入框获取焦点后键盘弹出把整个布局上移
* 键盘回落后布局也相应回落
*
*/
public class MainActivity extends AppCompatActivity {
private LinearLayout root_view;
private int screenHeight = 0;
private int keyHeight = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initListener();
initOtherData();
}
private void initView() {
root_view = (LinearLayout) findViewById(R.id.root_view);
}
private void initListener() {
root_view.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
@Override
public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
if (oldBottom != 0 && bottom != 0 && (oldBottom - bottom > keyHeight)) {
Toast.makeText(MainActivity.this,"键盘弹起",Toast.LENGTH_SHORT).show();
} else if (oldBottom != 0 && bottom != 0 && (bottom - oldBottom > keyHeight)) {
Toast.makeText(MainActivity.this,"键盘落下",Toast.LENGTH_SHORT).show();
}
}
});
}
private void initOtherData() {
screenHeight = this.getWindowManager().getDefaultDisplay().getHeight();
keyHeight = screenHeight / 3;
}
}
activity_main.xml
xmlns:app="/apk/res-auto"
xmlns:tools="/tools"
android:id="@+id/root_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
tools:context=".keyboardlogin.MainActivity">
你也可以看这里
和这里
