Android 软键盘状态并隐藏输入法的实例

package cc.c;  import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.view.inputmethod.InputMethodManager; import android.widget.Button; import android.widget.EditText; import android.app.Activity; import android.content.Context; /**  * Demo描述:  * 1 软键盘状态的切换  * 2 强制隐藏输入法键盘  */ public class MainActivity extends Activity {   private EditText mEditText;   private Button mButton;   private Context mContext;   @Override   protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.main);     init();   }      private void init(){     mContext=this;     mEditText=(EditText) findViewById(R.id.editText);     mButton=(Button) findViewById(R.id.button);     mButton.setOnClickListener(new OnClickListener() {       @Override       public void onClick(View v) {         //toggleInput(mContext);         hideInput(mContext,mEditText);       }     });   }      /**    * 切换软键盘的状态    * 如当前为收起变为弹出,若当前为弹出变为收起    */   private void toggleInput(Context context){     InputMethodManager inputMethodManager =     (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE);     inputMethodManager.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);   }      /**    * 强制隐藏输入法键盘    */   private void hideInput(Context context,View view){     InputMethodManager inputMethodManager =     (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE);     inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);   }   } 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"   xmlns:tools="http://schemas.android.com/tools"   android:layout_width="match_parent"   android:layout_height="match_parent"   android:paddingBottom="@dimen/activity_vertical_margin"   android:paddingLeft="@dimen/activity_horizontal_margin"   android:paddingRight="@dimen/activity_horizontal_margin"   android:paddingTop="@dimen/activity_vertical_margin"   tools:context=".MainActivity" >    <EditText     android:id="@+id/editText"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_centerInParent="true"     android:hint="Input here" />    <Button     android:id="@+id/button"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_above="@id/editText"     android:layout_centerHorizontal="true"     android:layout_marginBottom="15dp"     android:hint="Button" />  </RelativeLayout>