java - 如何以编程方式设置对齐(右或左)TextView？

Question

在以下位置设置textview时，我做错了什么？

-线性布局-

（左）imageview -textview -------------------------------------------- （右）imageview -textview

    parent.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
    parent.setOrientation(LinearLayout.HORIZONTAL);

    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
    LinearLayout.LayoutParams.WRAP_CONTENT,convertDpToPixel(23));

    textView.setLayoutParams(params);
    icFeature.setLayoutParams(params);
    icFeature2.setLayoutParams(params);
    textView2.setLayoutParams(params);
    textView2.setGravity(Gravity.RIGHT);
    parent.addView(textView);
    parent.addView(icFeature);
    parent.addView(icFeature2);
    parent.addView(textView2);
    linearLayout.addView(parent);

Answer 1

您正在设置TextView自己的Gravity属性，该属性控制其文本在其自身范围内的呈现方式。您想改为在LayoutParams上设置Gravity属性：

https://developer.android.com/reference/android/widget/LinearLayout.LayoutParams#gravity

parent.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
parent.setOrientation(LinearLayout.HORIZONTAL);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
    LinearLayout.LayoutParams.WRAP_CONTENT, convertDpToPixel(23));
textView.setLayoutParams(params);

// Create new params for second view
LinearLayout.LayoutParams params2 = new LinearLayout.LayoutParams(
    LinearLayout.LayoutParams.WRAP_CONTENT, convertDpToPixel(23));
params2.gravity = Gravity.RIGHT | Gravity.END; // Set gravity on layout params
textView2.setLayoutParams(params2);
// textView2.setGravity(Gravity.RIGHT); // Remove this

icFeature.setLayoutParams(params);
icFeature2.setLayoutParams(params);
parent.addView(textView);
parent.addView(icFeature);
parent.addView(icFeature2);
parent.addView(textView2);
linearLayout.addView(parent);

希望有帮助！