android.view.KeyEvent.getAction()方法的使用及代码示例

x33g5p2x  于2022-01-23 转载在 其他  
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本文整理了Java中android.view.KeyEvent.getAction()方法的一些代码示例，展示了KeyEvent.getAction()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。KeyEvent.getAction()方法的具体详情如下：
包路径：android.view.KeyEvent
类名称：KeyEvent
方法名：getAction

KeyEvent.getAction介绍

暂无

代码示例

代码示例来源：origin: stackoverflow.com

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
  if (event.getAction() == KeyEvent.ACTION_DOWN) {
    switch (keyCode) {
      case KeyEvent.KEYCODE_BACK:
        if (mWebView.canGoBack()) {
          mWebView.goBack();
        } else {
          finish();
        }
        return true;
    }

  }
  return super.onKeyDown(keyCode, event);
}

代码示例来源：origin: stackoverflow.com

public boolean onEditorAction(TextView exampleView, int actionId, KeyEvent event) {
  if (actionId == EditorInfo.IME_NULL  
   && event.getAction() == KeyEvent.ACTION_DOWN) { 
   example_confirm();//match this behavior to your 'Send' (or Confirm) button
  }
  return true;
}

代码示例来源：origin: stackoverflow.com

public boolean onKeyPreIme(int keyCode, KeyEvent event) {
  if (keyCode == KeyEvent.KEYCODE_BACK && 
    event.getAction() == KeyEvent.ACTION_UP) {
      // do your stuff
      return false;
  }
  return super.dispatchKeyEvent(event);
}

代码示例来源：origin: stackoverflow.com

builder.setNegativeButton("Refuse", new OnClickListener() {
     @Override
     public void onClick(DialogInterface dialog, int which) {
       finish();
     }
   })
   .setOnKeyListener(new OnKeyListener() {
     @Override
     public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
       if(keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP)
         finish();
       return false;
     }
   });

代码示例来源：origin: commonsguy/cw-omnibus

@Override
 public boolean onKey(View v, int keyCode, KeyEvent event) {
  if (event.getAction()==KeyEvent.ACTION_DOWN) {
   switch (keyCode) {
    case KeyEvent.KEYCODE_DPAD_DOWN:
     return(chooseNext());
    case KeyEvent.KEYCODE_DPAD_UP:
     return(choosePrevious());
   }
  }
  return(false);
 }
});

代码示例来源：origin: commonsguy/cw-omnibus

@Override
 public boolean onKey(View v, int keyCode, KeyEvent event) {
  if (event.getAction()==KeyEvent.ACTION_DOWN) {
   switch (keyCode) {
    case KeyEvent.KEYCODE_DPAD_DOWN:
     return(chooseNext());
    case KeyEvent.KEYCODE_DPAD_UP:
     return(choosePrevious());
   }
  }
  return(false);
 }
});

代码示例来源：origin: stackoverflow.com

final EditText edittext = (EditText) findViewById(R.id.edittext);
edittext.setOnKeyListener(new OnKeyListener() {
  public boolean onKey(View v, int keyCode, KeyEvent event) {
    // If the event is a key-down event on the "enter" button
    if ((event.getAction() == KeyEvent.ACTION_DOWN) &&
      (keyCode == KeyEvent.KEYCODE_ENTER)) {
     // Perform action on key press
     Toast.makeText(HelloFormStuff.this, edittext.getText(), Toast.LENGTH_SHORT).show();
     return true;
    }
    return false;
  }
});

代码示例来源：origin: stackoverflow.com

final EditText edittext = (EditText) findViewById(R.id.edittext);
edittext.setOnKeyListener(new View.OnKeyListener() {
    public boolean onKey(View v, int keyCode, KeyEvent event) {
      if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
        Toast.makeText(HelloFormStuff.this, edittext.getText(), Toast.LENGTH_SHORT).show();
        return true;
      }
      return false;
    }
  });

代码示例来源：origin: rey5137/material

@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
  if(keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_UP)
    et_helper.setError("Password is incorrect.");
  return false;
}

代码示例来源：origin: rey5137/material

@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
  if(keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_UP)
    et_helper_error.setError("Password is incorrect.");
  return false;
}

代码示例来源：origin: smuyyh/BookReader

@Override
  public boolean onKey(View v, int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP) {
      if (isVisible(llBatchManagement)) {
        goneBatchManagementAndRefreshUI();
        return true;
      }
    }
    return false;
  }
});

代码示例来源：origin: gzu-liyujiang/AndroidPicker

@Override
public final boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
  if (event.getAction() == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_BACK) {
    onBackPress();
  }
  return false;
}

代码示例来源：origin: Bigkoo/Android-PickerView

@Override
  public boolean onKey(View v, int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == MotionEvent.ACTION_DOWN && isShowing()) {
      dismiss();
      return true;
    }
    return false;
  }
};

代码示例来源：origin: rey5137/material

@Override
  public boolean onKey(View v, int keyCode, KeyEvent event) {
    if(keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_UP){
      String text = mPeriodEditText.getText().toString();
      if(TextUtils.isEmpty(text))
        mPeriodEditText.setText(String.valueOf(mRecurring.getPeriod()));
    }
    return false;
  }
});

代码示例来源：origin: rey5137/material

@Override
  public boolean onKey(View v, int keyCode, KeyEvent event) {
    if(keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_UP){
      String text = mEndNumEditText.getText().toString();
      if(TextUtils.isEmpty(text))
        mEndNumEditText.setText(String.valueOf(mRecurring.getEventNumber()));
    }
    return false;
  }
});

代码示例来源：origin: k9mail/k-9

@Override
public boolean dispatchKeyEvent(KeyEvent event) {
  boolean ret = false;
  if (KeyEvent.ACTION_DOWN == event.getAction()) {
    ret = onCustomKeyDown(event.getKeyCode(), event);
  }
  if (!ret) {
    ret = super.dispatchKeyEvent(event);
  }
  return ret;
}

代码示例来源：origin: commonsguy/cw-omnibus

@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 if (event == null || event.getAction() == KeyEvent.ACTION_UP) {
  searchFor(search.getText().toString());
  InputMethodManager imm=
    (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
  imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 }
 return(true);
}

代码示例来源：origin: commonsguy/cw-omnibus

@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 if (event == null || event.getAction() == KeyEvent.ACTION_UP) {
  adapter.add(v.getText().toString());
  v.setText("");
  InputMethodManager imm=
    (InputMethodManager)getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
  imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 }
 return(true);
}

代码示例来源：origin: commonsguy/cw-omnibus

@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 if (event == null || event.getAction() == KeyEvent.ACTION_UP) {
  adapter.add(v.getText().toString());
  v.setText("");
  InputMethodManager imm=
    (InputMethodManager)getActivity()
      .getSystemService(Context.INPUT_METHOD_SERVICE);
  imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 }
 return(true);
}

代码示例来源：origin: smuyyh/BookReader

@Override
  public boolean onKey(View v, int keyCode, KeyEvent event) {
    if (event.getAction() == KeyEvent.ACTION_DOWN) {
      if (keyCode == KeyEvent.KEYCODE_BACK && mWebView.canGoBack()) { // 表示按返回键
        mWebView.goBack(); // 后退
        // webview.goForward();//前进
        return true; // 已处理
      }
    }
    return false;
  }
});

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