java - 双击退出应用程序时出现问题

Question

所以我在我的主 Activity 上实现了双击退出，如果我进入设置 Activity 或游戏 Activity ，它会正常退出。但是，如果我进入 mainactivity --> gameactivity --> gameoveractivity 然后按回它会启动 mainactivity 正常但然后双击只会返回 gameoveractivity 并且我不确定为什么当我从 gameoveractivity 启动 mainactivity 时调用完成。

主屏幕 Activity :

// button listeners
        playButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                Intent gameActivityIntent = new Intent(MainScreenActivity.this, GameActivity.class);
                startActivity(gameActivityIntent);
                overridePendingTransition(R.anim.righttocenter, R.anim.centertoleft);
                finish();
            }

        });

        settingsButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent settingsActivityIntent = new Intent(MainScreenActivity.this, SettingsActivity.class);
                MainScreenActivity.this.startActivity(settingsActivityIntent);
                overridePendingTransition(R.anim.righttocenter, R.anim.centertoleft);
            }

        });

游戏 Activity :

// handle hardware back button
    @Override
    public void onBackPressed() {
        Intent mainScreenActivityIntent = new Intent(GameActivity.this, MainScreenActivity.class);
        startActivity(mainScreenActivityIntent);
        overridePendingTransition(R.anim.lefttocenter, R.anim.centertoright);
        finish();
    }

处理游戏结束 Activity 的逻辑代码:

if (weight.getBounds().intersect(player.getBounds())) {
                timer.cancel();
                gameTimer.cancel();
                player.setTouched(false);
                save(score, time);
                Intent gameOverIntent = new Intent(this.getContext(), GameOverActivity.class);
                this.getContext().startActivity(gameOverIntent);
                ((Activity) this.getContext()).finish();
            }

游戏结束 Activity :

// handle hardware back button
    @Override
    public void onBackPressed() {
        Intent mainScreenActivityIntent = new Intent(GameOverActivity.this, MainScreenActivity.class);
        mainScreenActivityIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        GameOverActivity.this.startActivity(mainScreenActivityIntent);
        overridePendingTransition(R.anim.lefttocenter, R.anim.centertoright);
        finish();
    }

编辑:设法通过添加以下内容来解决此问题:gameOverIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);在创建 gameoveractivityintent 后的游戏逻辑代码中。

Answer 1

设法通过添加以下内容来解决此问题:

gameOverIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 

在创建 gameoveractivityintent 后的游戏逻辑代码中。