以编程方式更改Android EditText的色调颜色

4 回答

• 7

  使用新引入的 android.support.v4.graphics.drawable.DrawableCompat#setTint 设置，现在可以使用颜色 .

  回复于 2024-04-25T03:40:42+08:00
• 32

  尝试创建自定义 EditText 并将 this.setBackgroundTintList( ColorStateList.valueOf( color ) ); 添加到构造函数中 .

  回复于 2024-04-25T03:40:42+08:00
• 0

  这对我有用：

  editText.getBackground().setColorFilter(getResources().getColor(R.color.your_color),
                                          PorterDuff.Mode.SRC_ATOP);
  

  资料来源：Changing EditText bottom line color with appcompat v7

  回复于 2024-04-25T03:40:42+08:00
• 11

  我写了一个小组件来实现这种行为 .

  几个重要的注意事项：

  • 使用旧学校 setColorFilter 方法

  • 要使色调工作，首先将焦点切换到其他视图，然后着色 EditText background drawable

  用法

  ErrorLabelLayout layoutPassError = (ErrorLabelLayout) findViewById(R.id.layoutPasswordError)
  layoutPassError.setError("Password_is_wrong");
  // when you want to clear error e.g. in on text changed method
  layoutPassError.clearError();
  

  XML

  <com.view.material.ErrorLabelLayout
      android:id="@+id/layoutPasswordError"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:focusable="false">
  
      <EditText
          android:id="@+id/editPassword"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:inputType="textPassword"
          android:hint="Enter your password"/>
  </com.view.material.ErrorLabelLayout>
  

  资源

  public class ErrorLabelLayout extends LinearLayout implements ViewGroup.OnHierarchyChangeListener {
  
      private static final int ERROR_LABEL_TEXT_SIZE = 12;
      private static final int ERROR_LABEL_PADDING = 4;
  
      private TextView mErrorLabel;
      private Drawable mDrawable;
      private int mErrorColor;
  
      public ErrorLabelLayout(Context context) {
          super(context);
          initView();
      }
  
      public ErrorLabelLayout(Context context, AttributeSet attrs) {
          super(context, attrs);
          initView();
      }
  
      public ErrorLabelLayout(Context context, AttributeSet attrs, int defStyleAttr) {
          super(context, attrs, defStyleAttr);
          initView();
      }
  
      private void initView() {
          setOnHierarchyChangeListener(this);
          setOrientation(VERTICAL);
          mErrorColor = Color.parseColor("#D32F2F");
          initErrorLabel();
      }
  
      private void initErrorLabel() {
          mErrorLabel = new TextView(getContext());
          mErrorLabel.setFocusable(true);
          mErrorLabel.setFocusableInTouchMode(true);
          mErrorLabel.setTextSize(ERROR_LABEL_TEXT_SIZE);
          mErrorLabel.setTextColor(mErrorColor);
          mErrorLabel.setPadding(dipsToPix(ERROR_LABEL_PADDING), 0, dipsToPix(ERROR_LABEL_PADDING), 0);
      }
  
      public void setErrorColor(int color) {
          mErrorColor = color;
          mErrorLabel.setTextColor(mErrorColor);
      }
  
      public void clearError() {
          mErrorLabel.setVisibility(INVISIBLE);
          mDrawable.clearColorFilter();
      }
  
      public void setError(String text) {
          mErrorLabel.setVisibility(VISIBLE);
          mErrorLabel.setText(text);
          // changing focus from EditText to error label, necessary for Android L only
          // EditText background Drawable is not tinted, until EditText remains focus
          mErrorLabel.requestFocus();
          // tint drawable
          mDrawable.setColorFilter(mErrorColor, PorterDuff.Mode.SRC_ATOP);
      }
  
      @Override
      public void onChildViewAdded(View parent, View child) {
          int childCount = getChildCount();
          if (childCount == 1) {
              mDrawable = getChildAt(0).getBackground();
              addView(mErrorLabel);
          }
      }
  
      @Override
      public void onChildViewRemoved(View parent, View child) {
      }
  
      private int dipsToPix(float dps) {
          return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
                  dps, getResources().getDisplayMetrics());
      }
  }
  

  在带有 com.android.support:appcompat-v7:22.1.1 库的API 16/21上进行了测试 .

  回复于 2024-04-25T03:40:42+08:00