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