1.

EditText ed=(EditText) findViewById(R.id.test);

ed.clearFocus();

2.

在AndroidMainfest.xml中选择哪个activity，设置windowSoftInputMode属性为adjustUnspecified|stateHidden 
比如：<activity android:name=".Main" 
                  android:label="@string/app_name" 
                  android:windowSoftInputMode="adjustUnspecified|stateHidden" 
                  android:configChanges="orientation|keyboardHidden"> 
            <intent-filter> 
                <action android:name="android.intent.action.MAIN" /> 
                <category android:name="android.intent.category.LAUNCHER" /> 
            </intent-filter> 
        </activity> 

3.

强制隐藏Android输入法窗体 
比如：EditText edit=(EditText)findViewById(R.id.edit);  
           InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE); 
           imm.hideSoftInputFromWindow(edit.getWindowToken(),0); 

4.

EditText始终不弹出软件键盘 
例：EditText edit=(EditText)findViewById(R.id.edit); 
       edit.setInputType(InputType.TYPE_NULL);