Markieren Sie Textansicht auf klicken

Question

Ich habe ein lineares Layout erstellt, in dem ich mehrere Textansicht habe. Zurzeit kann ich jeweils nur eine Textansicht markieren. Jetzt will ich Immer wenn ein Benutzer auf eine Textansicht klickt, sollte er hervorgehoben werden und ich möchte den Benutzer auf maximal 3 Auswahl beschränken.

Hier ist meine XML-Datei:

<LinearLayout 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/goal" 
    android:layout_marginTop="15dp" 
    android:orientation="vertical"> 

     <TextView 
      android:id="@+id/goalText1" 
      android:layout_width="match_parent" 
      android:layout_height="63dp" 
      android:background="@drawable/white_border_rounded" 
      android:padding="4dp" 
      android:layout_margin="18dp" 
      android:layout_gravity="fill" 
      android:gravity="center" 
      android:text="@string/goal1" 
      android:textColor="@color/white" 
      android:textSize="21sp"/> 
      <TextView 
       android:id="@+id/goalText2" 
       android:layout_width="match_parent" 
       android:layout_height="63dp" 
       android:background="@drawable/white_border_rounded" 
       android:padding="4dp" 
       android:layout_margin="18dp" 
       android:layout_gravity="fill" 
       android:gravity="center" 
       android:text="@string/goal2" 
       android:textColor="@color/white" 
       android:textSize="21sp"/> 
      <TextView 
       android:id="@+id/goalText3" 
       android:layout_width="match_parent" 
       android:layout_height="63dp" 
       android:background="@drawable/white_border_rounded" 
       android:padding="4dp" 
       android:layout_margin="18dp" 
       android:layout_gravity="fill" 
       android:gravity="center" 
       android:text="@string/goal3" 
       android:textColor="@color/white" 
       android:textSize="21sp"/> 
      <TextView 
       android:id="@+id/goalText4" 
       android:layout_width="match_parent" 
       android:layout_height="63dp" 
       android:background="@drawable/white_border_rounded" 
       android:padding="4dp" 
       android:layout_margin="18dp" 
       android:layout_gravity="fill" 
       android:gravity="center" 
       android:text="@string/goal4" 
       android:textColor="@color/white" 
       android:textSize="21sp"/> 

      <TextView 
       android:id="@+id/goalText5" 
       android:layout_width="match_parent" 
       android:layout_height="63dp" 
       android:background="@drawable/white_border_rounded" 
       android:padding="4dp" 
       android:layout_margin="18dp" 
       android:layout_gravity="fill" 
       android:gravity="center" 
       android:text="@string/goal5" 
       android:textColor="@color/white" 
       android:textSize="21sp"/> 
      <TextView 
       android:id="@+id/goalText6" 
       android:layout_width="match_parent" 
       android:layout_height="63dp" 
       android:background="@drawable/white_border_rounded" 
       android:padding="4dp" 
       android:layout_margin="18dp" 
       android:layout_gravity="fill" 
       android:gravity="center" 
       android:text="@string/goal6" 
       android:textColor="@color/white" 
       android:textSize="21sp"/> 
      <TextView 
       android:id="@+id/goalText7" 
       android:layout_width="match_parent" 
       android:layout_height="63dp" 
       android:background="@drawable/white_border_rounded" 
       android:padding="4dp" 
       android:layout_margin="18dp" 
       android:layout_gravity="fill" 
       android:gravity="center" 
       android:text="@string/goal7" 
       android:textColor="@color/white" 
       android:textSize="21sp"/> 
      <TextView 
       android:id="@+id/goalText8" 
       android:layout_width="match_parent" 
       android:layout_height="63dp" 
       android:background="@drawable/white_border_rounded" 
       android:padding="4dp" 
       android:layout_margin="18dp" 
       android:layout_gravity="fill" 
       android:gravity="center" 
       android:text="@string/goal8" 
       android:textColor="@color/white" 
       android:textSize="21sp"/> 
</LinearLayout> 

Hier ist meine Klasse-Datei:

public void onClick(View v) { 
    switch (v.getId()) { 
     case R.id.goalText1: 
      changeViewBackground(true, false, false, false); 
      goal_selection = mGoal1.getText().toString(); 
      break; 

     case R.id.goalText2: 
      changeViewBackground(false, true, false, false); 
      goal_selection = mGoal2.getText().toString(); 
      break; 

     case R.id.goalText3: 
      changeViewBackground(false, false, true, false); 
      goal_selection = mGoal3.getText().toString(); 
      break; 

     case R.id.goalText4: 
      changeViewBackground(false, false, false, true); 
      goal_selection = mGoal4.getText().toString(); 
      break; 

     case R.id.btnGoal: 
      Intent intent = new Intent(this, fiteness_level_selection.class); 


      try { 
       obj.put("SelectedGoal", goal_selection); 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
      intent.putExtra("GoalJson", obj.toString()); 
      startActivity(intent); 
      break; 


    } 

} 

private void changeViewBackground(boolean view1, boolean view2, boolean 
     view3, boolean view4) { 
    mGoal1.setSelected(view1); 
    mGoal2.setSelected(view2); 
    mGoal3.setSelected(view3); 
    mGoal4.setSelected(view4); 
    if(view1==true){ 
     mGoal1.setTextColor(getResources().getColor(R.color.black)); 
    } 
    else { 
     mGoal1.setTextColor(getResources().getColor(R.color.white)); 
    } 
    if(view2==true){ 
     mGoal2.setTextColor(getResources().getColor(R.color.black)); 
    } 
    else { 
     mGoal2.setTextColor(getResources().getColor(R.color.white)); 
    } 
    if(view3==true){ 
     mGoal3.setTextColor(getResources().getColor(R.color.black)); 
    } 
    else { 
     mGoal3.setTextColor(getResources().getColor(R.color.white)); 
    } 
    if(view4==true){ 
     mGoal4.setTextColor(getResources().getColor(R.color.black)); 
    } 
    else { 
     mGoal4.setTextColor(getResources().getColor(R.color.white)); 
    } 

Hier ist meine ziehbar XML-Datei:

<?xml version="1.0" encoding="utf-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android" > 
    <item android:state_pressed="false" android:state_selected="false" > 
     <shape android:shape="rectangle" > 
      <corners android:radius="50dip" /> 
      <stroke android:width="1dip" android:color="@color/white" /> 
     </shape> 

    </item> 
    <item android:state_pressed="true" android:state_selected="false" > 
     <shape android:shape="rectangle" > 
      <corners android:radius="50dip" /> 
      <stroke android:width="1dip" android:color="@color/white" /> 
      <solid android:color="#fff"/> 
     </shape> 
    </item> 
    <item android:state_pressed="false" android:state_selected="true" > 
     <shape android:shape="rectangle" > 
      <corners android:radius="50dip" /> 
      <stroke android:width="1dip" android:color="@color/white" /> 
      <solid android:color="#fff"/> 
     </shape> 
    </item> 
    <item > 
     <shape android:state_pressed="true" android:state_selected="true" > 
      <corners android:radius="50dip" /> 
      <stroke android:width="1dip" android:color="@color/white" /> 
      <solid android:color="#fff"/> 
     </shape> 
    </item> 

</selector> 

Kann mir jemand vorschlagen kann, wie Ich erreiche es?

Answer 1

versuchen diesen Code ......

@Override 
public void onClick(View v) { 
    switch (v.getId()) { 
     case R.id.goalText1: 
      if (count <= 2) { 
       mGoal1.setTextColor(getResources().getColor(R.color.black)); 
       count++; 
      } else { 
       Toast.makeText(Main2Activity.this, "cant select more", Toast.LENGTH_SHORT).show(); 
      } 
      break; 

     case R.id.goalText2: 
      if (count <= 2) { 
       mGoal2.setTextColor(getResources().getColor(R.color.black)); 
       count++; 
      } else { 
       Toast.makeText(Main2Activity.this, "cant select more", Toast.LENGTH_SHORT).show(); 
      } 
      break; 

     case R.id.goalText3: 
      if (count <= 2) { 
       mGoal3.setTextColor(getResources().getColor(R.color.black)); 
       count++; 
      } else { 
       Toast.makeText(Main2Activity.this, "cant select more", Toast.LENGTH_SHORT).show(); 
      } 
      break; 

     case R.id.goalText4: 
      if (count <= 2) { 
       mGoal4.setTextColor(getResources().getColor(R.color.black)); 
       count++; 
      } else { 
       Toast.makeText(Main2Activity.this, "cant select more", Toast.LENGTH_SHORT).show(); 
      } 
      break; 
    } 
} 

mit diesem nur 3 Textview auswählen können, aber wenn Sie das Textview auch abzuwählen haben, dann müssen Sie (count--;) da.

Answer 2

Versuchen Sie, die changeViewBackground Methode zu folgen, ändern

private int count=0; 
private void changeViewBackground(TextView tv){ 
count++; 

if(count<=3){ 
tv.setTextColor(getResources().getColor(R.color.black)); 
tv.setSelected(true); 
}else{ 
count=0; 
tv.setTextColor(getResources().getColor(R.color.white)); 
tv.setSelected(false); 
} 

} 

Und das Textview übergeben, die obigen Verfahren hervorgehoben werden müssen.