我如何進行onTouchListener，允許在android上同時按下兩個按鈕

Question

我的意思是，我希望能夠同時按下兩個單獨的按鈕並讓它們在ACTION_DOWN和UP上執行操作。

我有多個onTouchListeners，但該應用只允許我一次按一個。 我需要能夠同時按下至少兩個。 我假設它與第一個按鈕被按下時程序陷入循環有關？

我讀了一些關於ACTION_POINTER1_DOWN和ACTION_POINTER2_DOWN的內容，但是我必須修改一些東西以使它們正常工作？ 或者我甚至在這里走在正確的軌道上？

package the1n07.bt_rc;

import android.content.Intent;
import android.gesture.Gesture;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.NumberPicker;


public class ControlActivity extends ActionBarActivity {

    Button speedPlusButton, speedMinusButton, forwardButton, backwardButton, leftButton, rightButton;
    EditText speedText;

    public String speed;
    public Integer speedInt;
    public boolean forward = false, backward = false, left = false, right = false;


    @Override
    protected void onCreate(Bundle savedInstanceState) {

        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);

        super.onCreate(savedInstanceState);
        setContentView(R.layout.test_layout);

        Main();

    }

    public void Main(){
        speedPlusButton = (Button) findViewById(R.id.speedPlusButton);
        speedMinusButton = (Button) findViewById(R.id.speedMinusButton);
        speedText = (EditText) findViewById(R.id.speedText);
        forwardButton = (Button) findViewById(R.id.forwardButton);
        backwardButton = (Button) findViewById(R.id.backwardButton);
        leftButton = (Button) findViewById(R.id.leftButton);
        rightButton = (Button) findViewById(R.id.rightButton);



        speedPlusButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                speed = speedText.getText().toString();
                speedInt = Integer.parseInt(speed);

                if(speedInt != 5) {
                    speedInt = speedInt + 1;
                }
                speed = Integer.toString(speedInt);
                speedText.setText(speed);
            }
        });

        speedMinusButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                speed = speedText.getText().toString();
                speedInt = Integer.parseInt(speed);

                if(speedInt != 1) {
                    speedInt = speedInt - 1;
                }
                speed = Integer.toString(speedInt);
                speedText.setText(speed);
            }
        });





        forwardButton.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                switch (event.getAction()) {
                    case MotionEvent.ACTION_DOWN:
                        Log.d("forward", "is held down");
                        forward = true;
                        forwardButton.setBackgroundColor(0xFF7D7D7D);
                        break;
                    case MotionEvent.ACTION_UP:
                        Log.d("forward", "is lifted");
                        forward = false;
                        forwardButton.setBackgroundColor(0xff222222);
                        break;
                    case MotionEvent.ACTION_CANCEL:
                        forwardButton.setBackgroundColor(0xff222222);
                        forward = false;
                        break;
                }

                return true;
            }
        });





        backwardButton.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                    switch (event.getAction()) {
                        case MotionEvent.ACTION_DOWN:
                            backward = true;
                            backwardButton.setBackgroundColor(0xFFB9B9B9);
                            break;
                        case MotionEvent.ACTION_UP:
                            backward = false;
                            backwardButton.setBackgroundColor(0xffffffff);
                            break;
                        case MotionEvent.ACTION_CANCEL:
                            backwardButton.setBackgroundColor(0xffffffff);
                            backward = false;
                            break;
                    }
                return true;
            }
        });





        leftButton.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                    switch (event.getAction()) {

                        case MotionEvent.ACTION_DOWN:
                            Log.d("left", "is held down");
                            left = true;
                            leftButton.setBackgroundColor(0xFF7D7D7D);
                            break;
                        case MotionEvent.ACTION_UP:
                            Log.d("left", "is lifted");
                            left = false;
                            leftButton.setBackgroundColor(0xff222222);
                            break;
                        case MotionEvent.ACTION_CANCEL:
                            leftButton.setBackgroundColor(0xff222222);
                            left = false;
                            break;
                    }

                return true;
            }
        });





        rightButton.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                    switch (event.getAction()) {
                        case MotionEvent.ACTION_DOWN:
                            right = true;
                            rightButton.setBackgroundColor(0xFFB9B9B9);
                            break;
                        case MotionEvent.ACTION_UP:
                            right = false;
                            rightButton.setBackgroundColor(0xffffffff);
                            break;
                        case MotionEvent.ACTION_CANCEL:
                            rightButton.setBackgroundColor(0xffffffff);
                            right = false;
                            break; //Does last case need break?
                    }
                return true;
            }
        });
    }

}

Answer 1

這兩個鏈接可能已經回答了這個問題：1）。 Android - 如何處理兩個手指觸摸 。 2）。 使用Ontouch偵聽器Android檢測多點觸控

還在那里發布了以下鏈接：1）。 http://android-developers.blogspot.com/2010/06/making-sense-of-multitouch.html 2）。 http://developer.android.com/training/gestures/multi.html