I wrote opengl es code for android to map textures on a square but i want to draw texture on polygons. When user moved the image, texture will be mapped on polygons have more vertexes. I tried the arrays combination below for pentagon but i could not find the correct triangle combination in indices array.

 public float vertices[] = { 
//               -1.0f, 1.0f, 0.0f,   //Top Left
//      -1.0f, -1.0f, 0.0f,  //Bottom Left
//      1.0f, -1.0f, 0.0f,   //Bottom Right
//      1.0f, 1.0f, 0.0f   //Top Right
               -1.0f, 1.0f, 0.0f,   //Top Left
      -1.0f, -1.0f, 0.0f,  //Bottom Left
      1.0f, -1.0f, 0.0f,   //Bottom Right
      1.0f, 1.0f, 0.0f,   //Top Right
      0.4f, 1.4f, 0.0f
          };
 /** Our texture pointer */
 private int[] textures = new int[1];

 /** The initial texture coordinates (u, v) */
 private float texture[] = {      
      //Mapping coordinates for the vertices
//   1.0f, 0.0f,
//      1.0f, 1.0f,
//      0.0f, 1.0f,
//      0.0f, 0.0f,
//      0.0f, 1.0f,
//      0.0f, 0.0f,
//      1.0f, 0.0f,
//      1.0f, 1.0f,
      0.0f, 0.0f,
      0.0f, 1.0f,
      1.0f, 1.0f,
      1.0f, 0.0f,
      1.0f, 0.7f,
         };


    /** The initial indices definition */ 
    private byte indices[] = {
         //2 triangles
//      0,1,2, 2,3,0,    
      0,1,2, 2,3,4, 3,4,0, //triangles for five vertexes 
              };
i draw with the code below  
gl.glDrawElements(GL10.GL_TRIANGLES, indices.length, GL10.GL_UNSIGNED_BYTE, indexBuffer);