以编程方式更改浮动按钮背景 (ButterKnife)

Question

我是 Android Butterknife 的新手，想更改浮动按钮的背景颜色。我无法做到 this.How 我可以在 advance.Application 中实现 this.Thanks 当我使用时崩溃

 floatingActionButton.setBackgroundTintList(ColorStateList.valueOf(Color
            .parseColor("#33691E")));

如果我不集成 Butterknife，这可以正常工作。这是我的浮动按钮

    <android.support.design.widget.FloatingActionButton
    android:layout_width="wrap_content"
    android:id="@+id/fab1"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|right"
    app:rippleColor="@android:color/white"
    android:layout_margin="16dp"
    android:src="@drawable/circle"
    android:onClick="newForm"
    app:layout_anchorGravity="bottom|right|end" />

并且在 MainActivity

public class MainActivity extends AppCompatActivity implements    
SearchView.OnQueryTextListener {

@BindView(R.id.fab1)
FloatingActionButton floatingActionButton;

@BindColor(R.color.colorFolatingButton)
int Floating_Button_Color;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ButterKnife.bind(this);

    setSupportActionBar(toolbar);

  floatingActionButton.setBackgroundColor(Floating_Button_Color);

}
@OnClick(R.id.fab1)
public void  newForm (View view){

    AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
    builder.setTitle("Confirm");
    builder.setMessage("Are you sure?");

    builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Intent intent = new Intent(getApplicationContext(),BuilderPage.class);
            startActivity(intent);
        }
    });


    builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            dialog.dismiss();
        }
    });

    AlertDialog alert = builder.create();
    alert.show();
}

Answer 1

使用app:backgroundTint="@color/your_color"

Answer 2

我从@tdamian-kozlakejjd 找到了这个答案。按照这个 link 这可能对你有帮助

app:backgroundTint="@color/YOURCOLOR"
xmlns:app="http://schemas.android.com/apk/res-auto"

以编程方式更改浮动按钮背景 (ButterKnife)

Change the floatingButton Background (ButterKnife) programmatically

android-studio

butterknife