Question

我在操作栏中有一个菜单，所以我希望在每种情况下都能打开一个活动。我无法弄清楚如何做到这一点。我的第一个活动是关于我们（只是一个文本视图）

<div class="main">
  <div class="child1">Block 1</div>
  <div class="child2">Block 2!</div>
  <div class="child3">Block 3</div>
  <div class="child4">Block 4</div>
</div>

Answer 1

您可以将您的意图传递给您想要打开的课程。

@Override
public boolean onOptionsItemSelected(MenuItem item) { 
Intent intent;
switch(item.getItemId()) {
    case R.id.about_us:
        //open AboutUsActivity
        intent = new Intent(this, aboutUsActivity.class);
        startActivity(intent);
        finish();
        return true;

    case R.id.about_measures:
        //add the function to perform here
        intent = new Intent(this, aboutMeasuresActivity.class);
        startActivity(intent);
        finish();
        return true;

    case R.id.feedback:
        //add the function to perform here
        intent = new Intent(this, feedbackActivity.class);
        startActivity(intent);
        finish();
        return true;

    case R.id.rate:
        //add the function to perform here
        intent = new Intent(this, rateActivity.class);
        startActivity(intent);
        finish();
        return true;
  }
    return(super.onOptionsItemSelected(item));
}

Answer 2

您需要提供指定目标活动和当前活动上下文的意图。像这样：

case R.id.about_us:
    //open AboutUsActivity
    startActivity(new Intent(CurrentActivity.this, AboutUsActivity.class));
    return(true);

如何在每种情况下打开一个活动

2 个答案: